Recovery Of Database On A Mount Point
Jul 26, 2007
When restoring a database where the data file(s) are located under a mount point, seems to be a problem with reporting free space available.
DB Size - Say 30GB (25 Data, 5 Log)
E: Drive 20GB with 15GB Free
Restoring database file to
E:SQLMountPoint
- This points to separate disk with more than enough free space
SQL prevents the restore by stating there is not enough free space.
A long work around is
assign a drive letter to the large disk
Restore database using temp drive letter - F:SQLDATAMyDB_Data.mdf
Update sysfiles - changing drive & path - E:SQLMountPointSQLDATAMyDB_Data.mdf
Stop & restart database...
Is there a better way???
Wishlist - Restore only warns about free space - but allows continue...
Regards
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Mar 26, 2008
Hello all,
First off, I appreciate the time that those of you reading and responding to this request are offering. My quesiton is a theoretical and hopefully simple one, and yet I have been unable to find an answer to it on other searches or sources.
Here's the situation. I am working with SQL Server 2005 on a Windows Server 2003 machine. I have a series of databases, all of which are in Full recovery mode, using a backup device for the full database backups and a separate device for the log backups. The full backups are run every four days during non-business hours. The log backups are run every half hour.
Last week, one of my coworkers found that some rarely-used data was unavailable, and wanted to restore a database to a point in time where the data was available. He told me that point in time was some time back in November.
To accomplish this, I restored the database (in a separate database, as to not overwrite my production database) using the Point in Time Recovery option. I selected November from the "To a point in time" window (I should note that this window is always grey, never white like most active windows, it seems), and the full database backup and the subsequent logs all became available in the "Select the backup sets to restore" window.
I then tried a bevy of different options from the "Options" screen. However, every restore succeeds (ie: it doesn't error out), but seems to be bringing the database back to a current point in time. It's never actually going back to the point in time I specify.
My questions are as follows:
a) Is it possible to do a point in time recovery to a point in time BEFORE the last full database backup?
b) If so, what options would you recommend I use? (ie: "Overwrite the existing database", restore with recovery, etc etc).
I again appreciate any and all advice I receive, and I look forward to hearing from anyone and everyone on this topic. Thank you.
Ryan
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Mar 13, 2006
Replication in SQL2K required a common file share between publisher and subsriber.
Our security policy will not allow our DB servers to communicate via net bios across the firewall.
Can SQL2K5 perform replication using the normal database communication ports (1433 or 2433)?
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Sep 14, 2006
Dear all,
I was trying to create filegroup and files on Mount Point, e.g. C:MOUNTFG1D1
If I try this:
.......
FILENAME = 'C:MOUNTFG1D1FG1F1.ndf',
It doesn't work, no matter what ACL I set on C:, C:MOUNT, or C:MOUNTFG1D1
But if I do this:
......
FILENAME = 'C:MOUNTFG1D1DATAFG1F1.ndf',
It will work, no need to set any ACL at all.
Any ideas?
dong
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Jun 25, 2014
I've a fresh installation of SQL Server 2014 Enterprise on Windows Server 2012R2. I've setup de Windows Server Failover Cluster and the validation test has been successfully passed. I use mountpoint so I've disk M: that is the host drive for mounted volume m:Isql2014A that is the base folder for mounted volume
On that folder I've 5 mountpoint:
1) m:isql2014a empdbdata
2) m:isql2014a empdblog
3) m:isql2014auserdata
4) m:isql2014auserlog
5) m:isql2014auserlog
into these 5 mountpoint I've placed the SQL Server files.
After the installation of the first FCI I've re-run the cluster validation wizard and again it has passed successfully. When I try to failover the instance from one node to the other I have 2 problem:
1) every time I do failover, some disks fail to come online for a while and then succeed :
Cluster resource 'CLD - IstA - TempDB Data' of type 'Physical Disk' in clustered role 'SQL Server (ISQL2014A)' failed. The error code was '0xaa' ('The requested resource is in use.').
2) sometimes the SQL Server service fails to start, in the error log I see that the master database is not accessible. The master database in into the m:isql2014abinbackup.
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Apr 20, 2015
Im backing up to a network directory thats actually a mount point on a different server.My backup was slower than usual so i opened up perfmon to have a look.
When selecting the mount point from the Logical Disks section in perfmon i can see that writes/sec & write bytes/sec both show zero for a long period of time, even though the backup percent complete is increasing.Then all of a sudden the writes to the network share jump massively.
Is there some caching mechanism for backups in sql where during a backup data is only flushed to the disk periodically during backup?
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Dec 23, 2014
is bulk logged recovery model support point in time recovery
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May 21, 2002
Hi Guys,
I wanted to know how to do a point in time recovery on sql server 2000.
I wanted to go back in time when I restore the file.
Can u also suggest any good book about it. Does BOL explains about it, I couldn't find it in BOL.
Thanks in advance.
Joe
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Sep 2, 2004
We have been testing point of time recovery using EM and found that this does not work.
We enter date and time and do net get the logs restored. Even if we use the default date it does not work. In Query Analyser we have have managed to recover to a point in time. Anybody got any idea why EM does not work.
We are using 2000 sp3
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Oct 13, 2006
Dear All,
How do we accomplish point in time recovery with SQL Server database.
For example:
My backup schedule is
Monday - Complete database
Tuesday - transaction log backup
Wednesday-transaction log backup
Thursday - transaction log backup
Friday - Complete database
Saturday - transaction log backup
Sunday - transaction log backup
For complete database backup, I use the below syntax:
BACKUP DATABASE myDB
TO DISK= @File1
WITH DESCRIPTION = @Desc
For transaction log backup, I use the below syntax:
BACKUP LOG myDB
TO DISK= @File1
WITH DESCRIPTION = @Desc
With this scenario, can I accomplish a point in time recovery? For example, if my database crashes on thursday night. How do i do complete recovery till that time?
Pls guide...
Regards,
qA
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Aug 10, 2000
Hi Everybody:
We plan to do point-in-time recovery for certain databases. We plan to do Complete Database Backup every night and transaction log backup every two hours from 8:00 AM to 5:00 PM. I have following questions regarding the log backup.
1. There are two type of backup 'Append to media' or 'Overwrite'. If I choose 'Append' for log backup, is that mean I only need to restore database against last log backup file because all previous log backups have been accumulated there?
2. Can I automatically truncate log after the backup is done? How I can do it?
Thank you very much.
Joan
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Nov 11, 2001
Is is true that in SQL Server 7, a point in time recovery can not read the active logs? So that any point in time recovery has to be with in some time frame of the backups of the logs?
Example:
If you have a full backup at 5 am.
Log backups every 2 hours.
You need to recover at 3:55. You would have to go back to your full backup from 2 am and the transaction logs from 6, 8, 10, 12, and 2.
You would lose any work done from 2-3:55pm?
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Jun 9, 2015
I have two databases on a Production Server that I want to Log Ship to a Test Server. According to the sys.master files the physical File Location is on an E drive. Early attempts at Log Shipping these two files error'd out due to space issues on the E drive (one Log Shipped and then one err'd out). I was subsequently informed from the server group that they would prefer that I Log Ship these two database files over to the M Drive where more space is available. In fact, they modified the Server Properties / Database Settings / Database Default Locations (for Data and Log) to the larger M drive (I'm not really sure why they just don't increase the E drive space but there is proabably a good reason).
Okay, so now my problems have been solved. Easy enough. Now I deleted the successful Log Shipped database and started from scratch. However, as before, one db restored and one failed (due to space issues). Apparently, both db are pointing towards the E drive. How is that possible?
So here I am with one successful database and the normal sys databases pointing to the E drive. What is the best way of approaching this move to the larger and preferred M drive?
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Oct 23, 2015
I make two full backups on Oct 1 and Oct 10. I want to restore the server to a state in Oct 5. So I just do as follows:
Perform a transaction log backup on the server on Oct 23. I have never backup transaction log in the past. Restore the server with Oct 1 full backup with NORECOVERY option.Try to restore to the point at Oct 5 12:00, with the transaction log.
But the restore fails and SQL Server said the transaction log does not contain the point. The point is too early. Why? Also my .LDF file is about 13G, but the transaction log backup is only 200MB. Why?
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Dec 18, 2001
Hi All,
If I perform a truncate table (non-logged operation) in my application, will this preclude me from being able to do a partial recovery (point-in-time) of my app. using the transaction logs?
Thanks in advance,
Liz
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May 6, 2015
How do I recover point in time if the database is participating in transactional replication and is a publisher.
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Sep 16, 2015
Assuming all windows servers belonging to the WSFC are on the same subnet, will the AG listener become a single failure point in system if all Application servers connect to the AG through the listener? If the answer is yes, what are the options to resolve this issue?
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Sep 17, 2015
Pages on a full recovery model database corrupted, need to ensure data loss is minimal for restore operation am thinking about restoring the latest full backup.
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Nov 1, 2015
We have an issue with a 3 node SQL 2012 Always on availability group. Normal operation is node 1 (primary replica) with node 2 and node 3 as secondary replicas.After some patching, SQL wasn't running on node 1 hence the AG flipped over to node 2. This went unnoticed for some time and the transaction log for one of the AG databases became full on node 2 and node 3. (I think this is because it couldn't commit the transactions on node 1 so couldn't truncate it's t-log?) The DB is using synchronous replication btw.So I started SQL on node 1 and flipped the AG back to node 1 (with a data loss warning but I accepted this).Now the issue is that on node 2 and 3, the DB in question is stuck in a "Reverting / In Recovery" State. I've tried various commands such as ALTER DATABASE SET ONLINE, RESTORE DATABASE WITH RECOVERY etc but these fail stating unable to obtain a lock on the DB.
The weird thing is that on node 1 the state of the DB is "synchronised".how to resolve this issue on node 2 and 3? I've left them overnight (in case they were rolling back transactions, the DB is fairly large) but nothing seems to have happened. remove the DB from the AG in node 2 and 3 and add it back in again, ie recreate the replication?
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Nov 23, 2006
I know how to create mount point in windows 20003 cluster, I am not sure how
to set it up with SQL 2005 running on the cluster.
Does sql need to be dependant on any of the disks? I have tried looking for
a guide, but cannot find.
current setup active active cluster running. I need to add san space which
will hold the databases. The san will be carved up into drive letters. each
drive letter will hold 3 mount points.
ie.
node 1
J:-2 mount point
k:2 mount point
l:2 mount point
node 2-
r:-2 mount point
s:2 mount point
t:2 mount point
each node would be able to own the disk if the other node failed over.
any help is appreciate. I have tried books online etc.. cannot find a good
step by step.;
thanks
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Feb 28, 2008
I understand mount points help scalability in easier maintenance.
By scalability do we mean more than 26 drive letters or it means adding more space to the same mount point letter on with more ease .
Can I add more space to a mountpoint if required later on by adding hard disks .
Also if one can give some pointers to good file group configuration guidelines / storage align partitions , it will be very much helpful
Further I my server CPU has 4 cores , will having 4 filegroups help me in improving system performance.
If SAN has 2 controllers , is it preferred to run data file partition on one controller and log file partition on another.
Thanks in advance.
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Sep 25, 2007
Hello,
We have a requirement to be able to monitor mount points. The xp_fixeddrives does not support mount point monitoring. Is there another way to do it. Does microsoft working on updating the xp_fixeddrives. Let me know if anyone has any ideas how to monitor mount points.
Thanks
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Mar 16, 2008
hi all!
can you help me, in which case will i need to Specify a Point in Time, when restoring a database?
for newbee like me, it looks like it's better to restore without Specifying a Point in Time, because i will restore my data, without headache.
can you give me some sort of example when and why to specifying a point in time?
thank you 1000x in advance!
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Jul 20, 2005
I will make it simpler to look...I have DB1 - as backup for day 1LOg1 as backup of logsT1 T2 T3 T4 T5 ...some transaction on day 2Now i backup againDB2Log2I want to restore the database till the point of transaction T3 say. Iknow the time or i assume a certain time.Is this possible .....i tried several options but hand in between forsome reason or the other. How can i achieve my solution. Is there someextra parameter i will require or what....i am wondering now that it isnot at all possible. Please help.RVGIf possible guys can you please mail me the sloution onJoin Bytes!*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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Jul 20, 2006
Hello,
To implement the new SQL 2005, I plan to make the environment easy to manage. The environment should be simple to document and be automated via scripts. Therefore I plan to use mount points as described below.
On a typical SQL server with multiple drives like C, D, E, F, G, H. Where each drive will have various folders to hold SQL code, data files, transaction log files, tempdb files, snapshot files, and other types of files. This typical environment is not pretty and is hard to write scripts for.
So I plan to standardize on one standard directory structure via volume mount point. On all new SQL 2005 servers, we should see drive E as the one and only SQL Server directory. Other drives will be mounted to drive E as shown.
E:
SQLSERVER local folder -sql code for each db instance
SQLSHARED local folder -sql shared tools for all db instances
SQLTLOG1 Drive H -db transaction log
SQLSNAP1 Drive F -db snapshot files
SQLTEMPDB1 Drive H -tempdb main data file
SQLWORK Drive D - DBA work area
SQLDATA1 Drive G -db data files
SQLDATA2 Future Drive -if SQLDATA1 is too large for any direct attached drive, or to get more I/O throughput.
With this implementation, I can easily write scripts to manage the environment. Also if any mounted volume is out of space, we can swap the based drive without doing any change to database configuration. We can also switch from direct attached drive to SAN in the future.
Do you think mount point is safe to use with SQL 2005? I know it is supported.
Do you have a standard directory structure for your environment? How do you do it?
Thanks,
KTMD
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Jul 20, 2005
We're considering purchasing an application,which stores some data in the filesystem, andsome data (meta data and links to files) inMS-SQL.We need to be able to create a backup whereinthe database and files are "in synch" (in other words,in a consistent state). We need to maintain the"referential integrity" between database and files.What I'm thinking of is something like this:1. stop the application server2. set database to readonly (flush updatesfrom cache to disk)3. backup database to disk files4. back up application files and backup files.(We could use "snapshot" capabilities of our diskhardware, so that the backup could run against thesnapshot; that would minimize downtime.)4. set database to read_write; restart app serverRecovery scenario would be:1. Stop application server.2. restore application files and database backup files3. restore database from disk backup4. restart application serverIs there a simpler way to get a "point in time" backupof application files and the database?
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Apr 9, 2014
Does sql server 2012 mount points support FileStream feature?
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Jun 8, 2015
I have to check for existence of mount points on drives and retrieve the Space information for those mount points. Is this even possible with t-sql??
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May 18, 2005
If I have a database backup from sunday, and a failure occurs monday... Can the backup .mdf and .ldf files be attached, and the backup log after the point of failure be applied to them?
The problem I am having is it looks like you can only restore from a .bak file, and then apply the log at the point of failure. IT doesn't look like you can restore the .ldf/.mdf files, and then apply the backup log from the point of failure.
Can someone please help? I'm in desparate need of fixing this !
Thanks,dp
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Feb 22, 2005
Hi all,
While cleaning up some code, I ran across the following statement in a stored proc - the purpose of which is to determine if a table exists in the local database: SELECT * FROM dbo.sysobjects where id = object_id(N'[dbo].[XML_PRINTDATE]') and OBJECTPROPERTY(id, N'IsUserTable') = 1of course I removed it from the IF just for testing purposes, but my quandry is this...
Why chose that select (converting table name to object ID) rather than just doing THIS:SELECT * FROM dbo.sysobjects where name = N'XML_PRINTDATE' and OBJECTPROPERTY(id, N'IsUserTable') = 1
I first thought it was to gain access to the "id" column value (and that may yet be the purpose of it), but the second code seems to work just peachy (I assume because the id column is present in the sysobjects table itself).
A follow-on question is this:
When I try to do the same check from another server (i.e.SELECT * FROM APRECEIVE1.DailyProd.dbo.sysobjects where name = N'XML_PRINTDATE' and OBJECTPROPERTY(id, N'IsUserTable') = 1) it of course fails because OBJECTPROPERTY only looks for the id on the local database.
So, do I CARE if it is a user table? (I am reasonably sure it is, of course) and if so, is there a way to check on the remote server for the object type?
Bottom line is I Think I can just simplify things and check for the object name on the remote server, but just don't want to take away any "warm fuzzy feeling" generated by the original stored proc, if such a warm fuzzy is of any benefit (though don't get me started on the relativity of warm fuzzies, I wrote my Thesis on that ;) )
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Sep 1, 2015
Can I use a full and differential backup to restore to a point of time?
Or I have to use full and transaction log backups in order to do a point of time restore?
I found today when I tried to restore a db from another database at the point of time for example 3:10 pm,
SSMS automatically select the full backup + the transaction backup that is done at 3:00 pm, but not select full + the differential backup I did at 3:12pm.
So I lost those records entered after 3:00pm.
I supposed it should use the differential backup and restore to 3:10. but it didn't.
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Jul 23, 2005
Database is OK. I just need to roll back all the transactions until certainpoint in time. How to do it?
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Jul 9, 2014
Last week I backed up my SQL Server by using BE 2012. I named the file "SQL Server BAK" which contained copies of my SQL Server databases. A few days ago I lost some part of my data due to accidental deletion. I backed it up, so I tried to restore the database from the .bkf file. The problem comes here, when I try to to restore my .bkf file, it becomes inaccessible.what causes this?
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