restore headeronly taking long time


Pinal is also a CrossFit Level 1 Trainer (CF-L1) and CrossFit Level 2 Trainer (CF-L2). The problem was however in insufficient rights. { Server\MSSQL10.SQLEXPRESS\MSSQL\Backup\ There wasnt anything I could do to resolve this issue (short of using a ridiculous number of backup files in an attempt to make the low perf period as short as possible). Feeling confident I just bumped it to the max and performed the restore. Specifies that the tape is automatically rewound and unloaded when the restore is finished. documentation.help. Once I decompressed my backup file I was able to import it. The restore would kick off at a decent rate giving me around 2 GB/sec (restoring over a WAN from multiple files to a server with 144 cores, 512 GB of RAM, and multiple data files on NVME storage). For SQL Server, this number is 4608 (or hexadecimal 0x1200). Provided for backward compatibility. The remote host is where you stored your backup files to be accessible by Delphix, known as the "Share Backup Location". If a password was provided when the backup set was created, the password must be supplied to perform any restore operation from the backup set. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. The backup file was transferred to a USB drive, taken to the new datacenter and copied over to a CIFS share where it would be available for performing restores. My search on the internet was not giving me a lot of details. In the twin paradox or twins paradox what do the clocks of the twin and the distant star he visits show when he's at the star? is my MOST popular training with no PowerPoint presentations and, Comprehensive Database Performance Health Check, CPU, Linux and Shutdown 3 SQL in Sixty Seconds Video, What is Source_Database_ID in Sys.Databases?- Interview Question of the Week #232, SQL SERVER Refresh Database Using T-SQL, SQL Server Performance Tuning Practical Workshop. There are times when you are not able to perform partial restores, or you need to restore entire databases to a new environment in as short a time as possible. Not having any obvious hardware restrictions I decided that as the restore was being performed across the network adjusting the MaxTransferSize might provide the biggest benefit. I've copied the bak file some other disk. For each backup on a given device, the server sends a row of header information with the following columns: NoteBecause RESTORE HEADERONLY looks at all backup sets on the media, it can take some time to produce this result set when using high-capacity tape drives.

{ 'logical_backup_device_name' | @logical_backup_device_name_var } There are things that you can do to improve the performance of your restores (and your backups). If it takes more than 10 minutes (the default SQL command timeout in Delphix), you may be running into one of the issues described in this article. This is quite obvious if you inspect the file name. Once this was done - I copied the database over to restore on SQL Server 2012 - and it failed with the following error, The media family on device 'C:\XXXXXXXXXXX.bak' is incorrectly formed. I started messing with some restore parameters last week and found that its possible to make some dramatic performance improvements. In my Comprehensive Database Performance Health Check, we can work together remotely and resolve your biggest performance troublemakers in less than 4 hours. NULL for file backups. The header information is sent as a row by the server for each backup on a given backup device in a table. Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. In this case FSUTIL FSINFO NTFSINFO .

Some of the more technical blogs will talk about adjusting some of the backup parameters to improve throughput. 'C:\go4sharepoint_1384_8481.bak' is This was not really a big deal with small databases, it would just take an extra couple of minutes to complete. The BufferCount specifies the number of IO buffers to be used for the restore operation. I just had this error with a large database (500 GB BAK-file) and it occured after its virtual host unexpectedly shut down. This error can be caused by the permissions to the file, which you should check, however recently I noticed that the same is thrown if the file has been transferred and windows has marked the file as 'Encrypt Contents to Secure Data'. But I was able to confirm that the slowdown did not happen when attempting to restore against an appropriately patched version of a fully supported version of SQL Server (time to put on the harder press for convincing management to allow us to upgrade). (shows Killed, but it is still running in background). If you decide to upgrade the staging instance, simply test the command again. { 'physical_backup_device_name' | @physical_backup_device_name_var } PASSWORD is a character string. Any help would be much appreciated. Fortunately this issue was fixed in October last year with. Of course this didn't work cause SQL server 2012 only supports backups from 2005 and upwards . I had a similar problem but I was trying to restore from lower to higher version (correct). Can anyone Identify the make, model and year of this car? The more VLFs, the longer restore time. This provides a wealth of useful information about the disk, and showed that it was indeed using a 4K sector size. In the firstscenario, thestaging databases were running on a SQL Server2016 SP1 instance. Thanks. terminating abnormally. Number corresponding to the device used for the backup operation: Username that performed the backup operation. This type of error will come when you try to upload backup data from a higher version to lower version. Doh! I was able to quickly grab a list of the files in date order and pipe those to a string and build the restore command. Working through the dumps the MS support engineer found bug from last year whereby disks formatted with a 4K sector size could experience slow restore performance. Make sure you do proper maintenance of msdb. Server Unicode comparison style configuration option, which provides additional control over the sorting of Unicode data. Name of the server that wrote the backup set. Any positive number can be used for this, however you have to be careful with larger numbers as you could potentially cause out of memory errors. If a password was provided when the media set was formatted, that password must be supplied to create a backup set on that media set. 7 = Logical I just had the same problem while doing RESTORE HEADERONLY from a backup taken from AWS RDS, Killing the Parallel Backup Queue is no easy task but with that said, I have found only two ways to do it. All physical device names and device numbers can be found in sysdevices. Username that performed the backup operation. Retrieves all the backup header information for all backup sets on a particular backup device. In a few rare cases, we have seen the RESTORE HEADERONLYcommand take longer than 20 minutes when the source database's log file was very large. [ [ , ] FILE = file_number ] A full backup was taken to local disk, it took a little over 9 hours (server and disk limitations prevented any work to try and improve that). in BACKUP DATABASE go4sharepoint_1384_8481 TO DISK=' C:\HostingSpaces\dbname_jun14_2010_new.bak' with FORMAT remove extra space before C:\. For quite some time I had been seeing a situation where database restores were slowing down after 50-60% of the restore was completed (you can output restore progress using WITH STATS = or use DMVs or sp_whoisactive). Im in the middle of a server migration and so Im setting up log shipping to get the databases consistent between the two servers prior to cutting over. Bingo, I have 4 instances, a mix of 2005 and 2008, and was using a 2008 backup trying to restore to 2005. In the case this issue is resolved you will likely receive a favorable response in seconds. She primarily focuses on the database domain, helping clients build short and long term multi-channel campaigns to drive leads for their sales pipeline. Perhaps ommit the extra space in your backup statement? An exception occurred while executing I captured process monitor to check IO and I was surprised to see that the above command was reading the whole file in chunks. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Due to the nature of Microsoft Tape Format, it is possible for backup sets from other software programs to occupy space on the same media as Microsoft SQL Server 2000 backup sets. Please try to upload in a higher version. This is a much nicer way to go. RESTORE HEADERONLY is terminating abnormally. Reference:Pinal Dave (https://blog.sqlauthority.com). You can Google/Bing/AltaVista and get a lot of results for speeding up your backups. Rather than sit there and write restore scripts for ~20 databases I figured it would be quicker to create a quick wrapper that I could just pass the filename into a then let nature take its course. rev2022.7.21.42639. [ WITH { NOUNLOAD | UNLOAD } Originally I was trying to restore a SQL Server 2000 backup to SQL Server 2012. ID for the current recovery fork for this backup. incorrect.). This issue I could reproduce time and again. 2. At the same time I could see a single core on the database server being pegged at 100% usage. I always prefer to do that within SSMS though. For example on the dSource's Configuration -> Data Management, tab specify the fully qualified domain name for the "Backup Path": 3. Maybe next time.

process this media family. Specifies that the tape is not unloaded automatically from the tape drive after a restore. When a password is defined on a media set, it is not enough that a user is a member of appropriate fixed server and database roles to perform a backup. what's version of db on your local env? SQL Server does not support software compression. For 1. you could try checking to see if the file was transferred properly (one easy way would be to check the md5 of the file on the server and again on the local environment to see if they match). https://social.msdn.microsoft.com/Forums/vstudio/en-US/441eb035-7ef1-4c96-be84-a67242cf6c19/restore-headeronly-statement-for-a-tde-compressed-backup-slow-to-complete-in-sql-server-2014?forum=sqldatabaseengine. Server code page or character set used by the server. This was a quick win for PowerShell. Passwords do not fully prevent unauthorized access to the contents of the media because the data in the backup sets is not encrypted and could theoretically be examined by programs specifically created for this purpose. [ [ , ] MEDIAPASSWORD = { mediapassword | @mediapassword_variable } ]