Backup
Estore Strategy For Production DB.
Jun 9, 2008
Hi,
I would like to have guide for backup
estore strategy for production DB..if i have to apply for high availability of production DB..
consider scenario ..Full backup every week, differential backups every 6 hours, and logs every fifteen minutes.
suppose my DB is crashed at 8:14 AM and my last logs were backed up at 8 AM then by looking above startegy then i lost my DB from 8 am to 8:14 am???? if not then where it shud find???
also looking above scenario by taking backup for such high frequency is it full my disk?? guide me pls...
T.I.A
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Jun 9, 2008
Hi
I have one query regarding backup
ecovery startegy
hi
I have Db with simple recovery model.. recently i updated my column without where clause now i need to recover all my original state of that column..i just have idea @ set DB recovery model to Full then take full back up and then take differantial back up and then take transactional log back up and restore it as full , diff and then most recent transactional log back up...but still i didnt get original state of that table column...
please guide me
T.I.A
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Jul 18, 2000
Hi all,
Pardon me for asking a question that I know has been asked before. I need to develop a backup strategy for our SQL Server and I am looking for any help that anyone can offer including recommending good books for reading.
Thanks in advance,
Faustina
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Oct 18, 2000
In SQL Server 6.5, Is it generally better to dump the
transaction log first, then the database or to dump
the database and then run a dump 'tranlog with truncate
only' option?
Or, is this more a matter of personal choice?
Toni
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Jul 23, 2005
I've recently inherited a position where I am responsible for the well-beingof some DBs.2 (much) more important than others.The current recovery model, from what I can tell, is to do a full db/logbackup overnight.This .bak file is then written to tape as well as saved on the disk for 2days.Both these dbs are used fairly extensively 8-5pm and losing data would notbe good.The db sizes are approx 5gb and 3gb.This doesn't seem like the ideal situation to me. Everything I read tellsme... full backup periodically, differential nightly and transaction hourly.Agreed?If so then I have 2 questions:1. Is the best way to do this via a maintenance plan or by scripting andscheduling?2. What, if any, overhead can be expected with regular transaction backupsduring work hours?A bit of a pointer to #1 would be appreciated also.Thanks.
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May 23, 2007
We are currently doing daily full backup of system & custom databases since database size is small. Is that good idea ? or better option would be weekly full & daily incrementatl ?
Do we need to do any special backup on system databases or transactional logs ?
Please advice
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Nov 1, 2007
Hi
I have concern about an sql server. The server has the operating system and sql server installed locally. The databases and transaction log files is stored on SAN. We used to have the database backup and transaction log backups stored locally on the server. We tape the database backup and transaction logs every 24h. If we lose the san and the server then we are stucked with no backup easily accessible. And on tape we loose of 24h data. We decided to put up stand alone server with no connection to the san and dump the backups file on this server. We also put a secondary server sql I case of emergency, to test backups and We are looking at the getting a mirroring or log shipping solution but we are not there yet, next year€™s budget. We still using some old server left from migrating to virtualization.
Then I read the €œPractical Troubleshooting The Database Engine book€? best practice not to avoid net work drive backups. Stuck aging. Back with the backup to local drive and robocopy them? Keep them on the network drive, start using? MIRROR TO in the BACKUP DATABASE? Today we are using the Backup Database Task in the SSIS.
Advice?
Regards
Johan
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May 21, 2007
I am running SQL Server 2005 x64 Enterprise under Window Server 2003 x64 Enterprise. After reviewing many posts and suggestions in this forum, I am developing a backup strategy that should include keeping my transaction log file in a manageble size.
Please examine the following proposed backup schedule and let me know if this is considered a sound plan. The scripts below will write to disk and each night and then be backed up to tape.
*** TASK 1 ***
Backup transaction log
/* This script backs up the DSS database transaction log to disk, overwriting any
previous backup
*/
BACKUP LOG [DSS]
TO DISK = N'g:mssqlackuplogdss_log.bak'
WITH
INIT
, NAME = N'DSS-Transaction Log Backup'
GO
*** TASK 2 ***
/* This script shrinks the DSS database transaction log file
*/
BACKUP LOG [DSS] with truncate_only
dbcc shrinkfile(DSS_log)
**** TASK 3 ****
/* This script backs up the DSS database to disk, overwriting any
previous backup
*/
BACKUP DATABASE [DSS]
TO DISK = N'g:mssqlackupdatabaseDSS.bak'
WITH DESCRIPTION = N'DSS Full Database Backup'
, INIT
, NAME = N'DSS - Full Database Backup'
GO
/* Backup validation to ensure the file is valid before storing it */
RESTORE VERIFYONLY
FROM DISK = N'g:mssqlackupdatabaseDSS.bak'
WITH FILE = 1
GO
*** TASK 4 ***
Update statistics on the DSS database
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Jun 15, 2007
This may seem like a silly question, but has anyone ever heard of a DBA or an Engineer deciding to not back up databases inside EM, and only relying on the RAID or third party software for redundancy?
SBS 2003 R2
SQL 2000
Veritas 8.6 open file agent, SQL agent, Exchange agent
Thanks for any input,
Rich
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Mar 2, 2007
Hi,
In my current organisation they are using SQL Server.
They are using TSM (Tivoli Storage Manager) to back up the server on a nightly base.
However I feel that this is not the correct way. Suppose I need some data back, I call technical support and they would restore the server. If another user made some changes to another database that day, he would lose his changes.
Of course they could restore a file but I am not sure if this is correctly. What will happen to the transaction log for example ?
My idea is that they should backup the database using the normal sql backup commando, dump the data to a folder and backup that folder.
Any suggestions please ?
Constantijn Enders
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May 4, 1999
Hi All,
Can any one help me with this..
I've a critical application that can't be stopped for a second.
I'd like to have an implementation that uses 2 sql 6.5 servers one as standby and
which is ready and up to date to take place and run instead of the master
server when it's down and when the master is back to work it's updated with the
data entered to the standby.
This process must be automatically to maximum extent.
Thanks
Mohamed
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Jun 14, 2007
My maintenance plans are starting to acting weird. I'm building a custom script to manage the database backups on my server, but curious if anybody has some sample work that will allow me to avoid re-inventing the wheel.
A couple of primary constraints:
I want to do a full backup daily (and only retain 1 day of full backups)
Transaction Log backups every 20 minutes
I'd like to loop through the databases on the server automatically to make this a little more flexible.
You have anything you'd like to share? Or, bits of knowledge worth sharing?
Please advise,
alex8675
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Sep 27, 2006
Hello.
I have only ever been required to take a full back up of my main prod database every night.
Now the times they are-a changing , and it is now required to be able to restore the database up to the last hour.
I've never really done much with tran log / differential backups so I'm asking for some advice as to what should be the best strategy. We are not a 24/7 shop we work from 6:30 am to 6:30 pm every day, so I thought:
Full backup @ 7pm
Backup tran log every hour after that starting @ 7am (as there are no changes overnight)
How does that sound? also when the tran log is backed up, is it truncated? Or do I need to shrink it? Basically I need to know what to do so it doesn't get too big!
Thanks
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Aug 16, 2006
I tried searching, but it appears the search is still broken.Some of you know my other posts.. pleading for help with a problem (that's really sort of fixed itself/not remanifested itself).Upon this whole ordeal I decided to re-evaluate my nonchelant backup strategy. Which currently is:Backup our DB daily w/ transaction logs. (overwrite the backup daily on the tape).Backup our DB weekly w/ transaction logs.I rotate the tape weekly, on Monday morning. So there is a weekly backup and the last backup from monday morning on each tape.Along with that I have some optimizations and shrinks I run. Reading through the SQL BOL. It seems my strategy is ok, however if we lost the db at the end of the day, we'd lose a full days worth of work.So. Here in lay the questions.The BOL states to possibly back up twice a week, with differential daily backups and 4 hour transaction logs (example).So, I sorta get that..I make a device, "COMPANY.BAK", which writes to my external 'tape' unit.I make a job to back up the complete DB on sunday. to "COMPANY.BAK". (Not sure if I tell it to truncate the transaction log?).I make another job to make nightly differential backups to "COMPANY.BAK" with the 'append to media' switch on.I make yet ANOTHER job to make a transaction log backup. Here's what I don't get. If I set this thing to run every 4 hours, since it's not a differential backup.. rather incremental.. doesn't it just overwrite itself each time? It doesn't append itself to the backup right? So how much data could be missing if the log is overwriting itself rather than appending to itself? Also, if I turn on truncate log on backup, aren't I missing possibly critical transactions from the log for a sucessful restore?I guess I'm a bit befuddled here.
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Jul 20, 2005
Hi,Could anyone tell me the backup strategy for a 1000GB database?Thank you!Peter Wang*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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Jan 24, 2007
Real World: Backup Strategy and implementation, how?
A quote:
€œReal World:
Whether you back up to tape or disk drive, you should use the tape rotation technique. Create multiple sets, and then write to these sets on a rotating basis. With a disk drive, for example, you could create these back files on different network drives and use them as follows:
//servername/data1drive/backups/AWorks_Set1.bak. Used in week 1, 3, 5 and so on for full and differential backups.
//servername/data2drive/backups/AWorks_Set2.bak. Used in week 2, 4, 6 and so on for full and differential backups.
//servername/data3drive/backups/AWorks_Set3.bak. Used in the first week of the month for full and differential backups.
//servername/data4drive/backups/AWorks_Set4.bak. Used in the first week of the quarter for full and differential backups.
Do not forget that each time you start a new rotation on a tape set, you should overwrite the existing media. For example, you would append all backups in week 1. Then, when starting the next rotation in week 3, you would overwrite the existing media for the first backup and then append the remaining backups for the week.€?
I understand these concepts, however in €˜the real world€™ how do you go about implementing these jobs in SQL2K and how on earth do you schedule the tasks to overwrite, for example, week 1, when on week 3€™s rotation.
Could I have real world examples or scripts for the jobs that would carry out this task? It appears that whatever course you do, it does not fully cover the above, and I have only worked on my own and never with a DBA, so I have never seen this implemented in any environment.
I would like full details on this please, as I need to get my head around it.
Thanks
Neil
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Dec 19, 2007
We have a critical Production database on which we want to setup Log-Shipping. We have also purchased the Symantec NetBackup utility for taking Backup to Tape Drives.
We Know that there are some inherent problems with using Log-Shipping and a Backup Strategy together, and thus we were finding out various ways in which we can run both in tandem.
One of them was taking the Symantec Log backups with Copy-Only option.
The main problem with this is that the Symantec Backups becomes dependent on the Log-Shipping Backups and also most of their Log-Backups become useless. Also, we are not sure whether the utility allows Copy-Only backups
The second alternative was to disable the Backup job of Log-Shipping on the Primary Server and to use the Log-Backups done by the Symantec utility for performing the Restores on the Secondary.
Thus, if Log-Shipping is scheduled to run say every 4 hrs, and the Symantec Log-backup happens every 1 hour, then at an interval of every 4 hrs, the Restore Job on the secondary will pick up the 4 backups done by the Symantec Backup utility and Restore each one of them in sequential manner.
But, I guess it is not easy to have a manual Restore Policy in place.
I was really banking on this solution until I found that the Restore Job of the Log-Shipping setup is dependent on the Filename of the Transaction log file which the systems generates automatically, and it won€™t be easy to create a customized Restore Job on the secondary server which takes in all the Log Backups generated by the Symantec Backup utility and Restore the Secondary database.
Have any one of you ever face this issue? Would like to know what is the best way to keep both of them running together.
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May 11, 2006
We currently use a split-mirror backup strategy for our Sybase database, which has a "quiesce database" command to suspend all transactions. By quiescing the database before splitting the mirror, we suspend all transactions to ensure we get a stable backup of the environment. It works very well for us and I'm trying to understand how we could implement this with our SQL Server 2005 DB.
(I'm aware of SQL Server mirroring and that there are other ways of possibly backing up the DB. In this post however, I'm only interested in how I would make the split-mirror strategy work if I wanted to pursue it. I'm trying to avoid paying for software that uses the VDI as it's quite costly.)
Can someone help me with how I would accomplish a split-mirror backup strategy in SQL Server 2005 (without using a vendor's software that uses the VDI)? I have to imagine there's something similar to the "quiesce database" command in SQL Server...
I appreciate the help!
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Oct 2, 2014
I have a scenario where a customer is going to be using Log Shipping to the DR site; however, we need to maintain the normal backup strategy on the current system. (i.e. Nightly Full, Every 6 Hour Differential and Hourly Transaction Log backup)I know how to setup Transaction Log Shipping and Fail-over to DR and backup but now the local backup strategy is going to be an issue. I use the [URL] .... maintenance solution currently.
Is it even possible to do regular backups locally keeping data integrity for your backup strategy with Transaction Log Shipping enabled?
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Jun 1, 2007
I am running SQL Server 2005 x64 Enterprise under Windows 2003 x64 Enterprise. My current backup strategy uses T-SQL jobs run by SQL Agent (writes out *.bak files) and then I have an Integration Services job that copies the *.bak files to our NAS device. I have performed a restore without issue. The jobs are all automated every four hours via SQL Agent. Is this a sound strategy or are there additional benefits to using 3rd party tools? If so, what are the advantages and which tool provides them?
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Sep 18, 2001
There is a database located at remote location we wanted the same on the local server..so we backed it up then restored the same on the local server everything went successfull.
When i tried to create user it says the user is already existing, but nither can i see the user nor drop the one..(ofcourse not existing) it gives me an error 15023.
The other problem is that when i check the storedprocedures i can see and open them when i try to look for permissions or assign it by clicking permissions tab it says the specific stored procedure doesnot exist and gives me a sql-dmo error 21770.
I donno what do..help would be appreciated.
Mark
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May 29, 2007
I have a 20 GB SS2005 database that I would like to be replicated to a dev server for testing purposes. I might have some issues with the firewall blocking ports. I haven't read up on the specifics of how log shipping works yet, but I assume that is the best approach. A daily transfer would suffice.
A few options I am considering:
1. use the built in stuff, but I'm not sure it will work with our security settings, and if the trans logs are large it might be strained.
2. writing a small custom app to zip up the log file then ftp them down to the dev server. This could run nightly.
3. some third party util, such as FolderShare could transfer the log files
Any comments or suggestions?
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Jul 23, 2005
I have a database file approximately 30GB in size which creates 3 datatables daily. I need to reduce the size of the DB due to disk sizelimitations. Could I EXPORT some tables, let us say over thirty daysold, to something like DB_Name_Archieve and them delete them from theproduction DB to reduce the size? I also need the ability toreference/read them at a later time as needed.As a side note, could SQL Server use data on a redirected drive i.e.NET Used. This would allow me to move the old tables to the redirecteddrive and reference them as needed.As always, thanks in advance.Peter
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Jul 23, 2014
I am attempting to create a Test db from a full backup of the production db. With 2012, I cannot do it the the way i had done it in previous versions (and now i understand why because of Logical names).
The Test db runs in the same instance as Prod db.
I attempted to run this but come up with errors. This is what i executed:
RESTORE DATABASE TEST FROM DISK = 'E:<path>FULL.BAK'
WITH REPLACE, RECOVERY,
MOVE 'PROD' TO 'E:<path>TEST.MDF';
The errors are all cannot execute due to PROD is in use.
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Aug 1, 2007
I currently have a SQL Server cluster setup with a Primary DB Server SERVER1 and the Standby server SERVER2. SERVER1 has been failing more than normal is the past few weeks and its takes upto 5 mins for SERVER2 realize that SERVER1 is down. I am looking for a better way to implement a backup server on production with minimum downtime. Please adivse..
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Jul 20, 2005
Any help would be greatly appreciated.My problem is that I need to set up a backup SQL Server 2000 machinewhich can be used in case of a failure to my primary. All databases(30 as of now) must be an up to the minute exact copy of productionand include most recent changes in data as well as any structurechanges (Tables, Views, SP's, Triggers, Users . . etc).When I tried this using Transactional Replication, the replicationprocess gets fouled up once I introduce any kind of structure changesto the DB. I've considered the idea of doing periodic backups andrestoring it to my backup SQL server, but this does not give me theconcurrency needed with 0 latency.I've seen articles that recommend using Transaction Replication with'Scheduled Table Refresh', and also doing database dumps to restore onthe backup machine, but I have not been able to find any documentationregarding this to try out. How can I implement this type of backupstrategy in SQL 2000?
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May 30, 2006
Hi guys.
I am currently developing a system thats stores exchange stats in a db. Since our customers are companies with 20 employees up to 5 000 there a a big difference in the volume of data needed to be stored.
We currently thinking of supplying a SQL Server Express DB to the small customers and suggest a SQL Server to the bigger.
But since I would like to use the same structure for both types of customers I wonder how should i design the storeage.
Since the could be from 500 records a day up to 20 000. There are quite simple recordes with only simple datatypes. about 15 fields with no more than 10 chars each, mostly 2.
Should i separate the data in diffrent tables for a week or a day etc.
Since I am only going to filter data on 1 or 2 fields the data will be easly indexed.
The reports generated will almost always only use 1-3 months of data, but historical reports have to be possible.
My question are ofcourse:
Whats the best solution for me?
Thanks in advance:)
/Johan Wendelstam
Sweden
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Jun 12, 2006
I have a bit of a problem with regards an indexing strategy. Well,basically there is no indexing strategy on a set of data I have atwork. Now, I didn't create the design as I would have allowed for this.OK, so there is primary key (clustered) indexes (mainly compositekeys), but no other indexes on the tables. As you would expect, theperformance leaves a lot to be desired. A hell of a lot. We haveseveral million rows in a lot of the tables. None of the queries seemto be overly complex so we can work through the applications at a laterstage.We have multiple copies (one per client per country) of the samestructure (I may have considered combining these to allow betterperformance). One specific SP that I need to run takes 40+ hourswithout indexes and 5 hours with some (130) basic indexes to get usstarted on a better design. These 130 indexes are the minimum I suspectwe need and from there, we can start to work out which ones we need.Now the test database (our worst performer) doubles in size to 20Gb,but the performance is much much better (as expected). The originalthinking behind the design was for storage concerns (server spacerecently upgraded) and for performance with bulk inserts.We have a lot of bulk inserts, but I suspect that these are not toobad, and the time taken for indexing these is negligable due to theperformance gains. I strongly suspect that we have a considerableamount of table scans going on, but the problem is that people heredon't understand indexing (yet) or have the time (probably because it'sall taken up using the poorly designed system). That's a whole seperateissue for me to address.So, finally getting round to my questions...Is there any good reference explaining in Layman's terms why you needbasic (or advanced) indexing ? Any links would be appreciated. I needthis to help explain to colleagues why a disk space increase andindexing will be far better than spending thousands on a new box anddoing the same (a common problem I suspect).How can I accurately estimate the amount of time taken to update anindex once data is bulk inserted. I don't want to re-index from scratchas this may take too long. Indexing my database first time round takesabout 1 hour 30 minutes.It's all part of an ongoing bit of digging into the system and re-doingit to make it work properly. I'm sure most of you will have been thereat some point or another.ThanksRyan
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Apr 23, 2008
Currently I have 1 server running MSSQL 2005 Standard. There is no redundancy in my current solution. I'm working on a project that involves a separate installation. I have 3 goals:
1) Provide redundancy for the new installation
2) Provide high availability for the new installation
3) Provide reduncancy for the current installation
Here's what I'm thinking about doing:
1) Purchase 2 servers and a Dell MD3000i ISCSI storage box. Cluster the servers and install SQL Server on the cluster.
2) Install SQL Server on an existing box (single CPU license) for backup purposes. Enable log shipping from the new cluster to the backup server.
3) Enable log shipping from the existing installation to the backup box.
I've also though about offloading some of the static pricing operations to the backup installation. This would free up my existing installation to deal with the changing data.
A couple of questions:
-How does this strategy sound? Are there any configuration problems with it?
-Can I legally use a development edition for the backup installation (if all I do is log shipping to it)?
Any other comments are welcome.
Thanks!
Brian
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Apr 22, 2007
I have been developing a genealogy application using a SQL Server 2000 database and ASP .NET 2.0. In this application a process, Ged.Parse, converts data from the GEDCOM standard format (a heirachical file format that looks as if it was designed for 80-column cards) into my SQL Server database.
As we started to load reasonable quantities of data into the system we found that the on-line response became abysmal. This problem was fixed by defining a number of secondary indexes (response times dropped to under a second, from previously exceeding 2 minutes and often timing out). Unfortunately however the processing time of Ged.Parse then tripled, and it may now take up to an hour to process a GEDCOM. I believe that this is a byproduct of defining several indexes that are not needed by Ged.Parse itself, but which are of course maintained as Ged.Parse inserts new records into the database.
I am wondering what my best strategy is, apart from putting Ged.Parse into a background task and just letting it trickle away. (I will probably do this anyway). What I'd like to be able to do is to have Ged.Parse load records without creating the secondary indexes, and then create the indexes for the newly-added records as a penultimate step just before it makes them available for general use. Of course there is no way that you can do this: records in a table are either indexed or they are not.
Proposed change: recode Ged.Parse to load data into temporary tables, say NewPeople, NewFacts, etc., with these tables having only the indexes required by Ged.Parse. Then, as the last process in Ged.Parse run a SQL procedure with code like: - Insert into People Select * From NewPeople Delete from NewPeople etc
This is a reasonable amount of programming, so before I make this change could somebody tell me: will this be significantly faster overall, or is this likely to make little or no improvement compared to the present process in which Ged.Parse loads data directly into People, Facts, etc? Two facts that may influence the answer. First, all record relationships are through GUIDs, so records in NewPeople, NewFacts, etc would already have their final key values. Second: although Ged.Parse needs to form relationships between records, these relationships are only within the new records (created from the same GEDCOM), and Ged.Parse does not need to relate any of these new records to earlier records.
Thank you,
Robert Barnes.
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Nov 27, 2000
Hi!
It would be very nice if some people out there, using
merge replication can tell me their strategy to get
started with a new subscriber. Is it a good way to copy
a publisher backup to the new subscriber and restore it
there and say that schema and data is already here when
creating the subscription?
I experienced some troubles when I tried to add a new
subscriber and used the initial snapshot transfer to
get the db to the new sub. (no defaults are transferred...???)
Or is it even better to use DTS?
I'd also be very grateful forinformations about RESCUE
STRATEGIES in case of a major database problem of replicated
databases!
Hoping for some answers. TIA & Best Regards
Gert
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Oct 22, 2004
I am using SQL Server 2000 and trying to create a disaster recovery strategy that would run nightly and backup the database or at least the changes and would ftp these to a secure ftp site. For smaller database it is easy, I just take a full backup, zip up the file and ftp it to the secure backup site. This strategy does not work so well when the zipped up database is still close to 3GB. I have a pretty big window for doing everything but 3GB is just too much to ftp overnight. The recovery model is simple so the only other option seemed to be do a full backup once a month and take differentials nightly. The problem is I am offsight and the client may need to take a full backup during the day and my nightly differential would get screwed up.
There is a fairly low volume of transactions so the idea of just doing nightly backups on the data that has changed is the obvious choice but differentials don't seem to fit. Any ideas?
Thanks,
TH
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Oct 20, 2006
Hi Folks,
The Need : Refresh a part of local database daily from remote server.
Assumption : All updates in remote are updated in local db as well.
Need inputs on the type of strategy
1) Take full backup of remote, refresh on local
( Downside for us is Network and disk space )
2) DTS ( refresh only the objects required )
Looks good to us but does it take care of my assumption ?? Your suggestions welcome .. I may be wrong
3) replication ( Dont want it implement on the already complicated sceanrio ... so I'll pass)
4) Standy databases ( ??? Any help on this)
5) Any other
Thanks so much,
Warm Regards,
Ranjit.
--------------------------------------------------------------
The best moments of my life are often things I get paid for
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