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    <p>You say you insert a lot of images per day. What else do you do with the images? Do you update them, many reads?</p> <p>Is your file system optimized for FILESTREAMs?</p> <p>How do you read out the images?</p> <p>If you do a lot of updates, remember that SQL Server will not modify the filestream object but create a new one and mark the old for deletion by the garbage collector. At some time the GC will trigger and start cleaning up the old mess. The problem with FILESTREAM is that it doesn't log a lot to the transaction log and thus the GC can be seriously delayed. If this is the problem it might be solved by forcing GC more often to maintain responsiveness. This can be done using the <a href="http://msdn.microsoft.com/en-us/library/ms188748.aspx" rel="nofollow noreferrer">CHECKPOINT</a> statement.</p> <p><strong>UPDATE:</strong> You shouldn't use FILESTREAM for small files (less than 1 MB). Millions of small files will cause problems for the filesystem and the Master File Table. Use varbinary in stead. See also <a href="http://msdn.microsoft.com/en-us/library/cc949109.aspx" rel="nofollow noreferrer">Designing and implementing FILESTREAM storage</a></p> <p><strong>UPDATE 2:</strong> If you still insist on using the FILESTREAM for storage (you shouldn't for large amounts of small files), you must at least configure the file system accordingly.</p> <p>Optimize the file system for large amount of small files (use these as tips and make sure you understand what they do before you apply)</p> <ul> <li>Change the Master File Table reservation to maximum in registry (FSUTIL.exe behavior set mftzone 4)</li> <li>Disable 8.3 file names (fsutil.exe behavior set disable8dot3 1)</li> <li>Disable last access update(fsutil.exe behavior set disablelastaccess 1)</li> <li>Reboot and create a new partition</li> <li>Format the storage volumes using a block size that will fit most of the files (2k or 4k depending on you image files).</li> </ul>
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    1. COWe are able to reproduce this problem by only doing INSERTS, no reads, no updates. It does not look like a managed memory issue... We have forced the garbage collector and it didn't help. It looks like it might be an OS issue since the memory of our process does not look high. The CHECKPOINT statement cleans the files that are not referenced by a FILESTREAM so it does not help us since we still want to reference our files...
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    2. COResponse to UPDATE #1: We use the filestream for small files because we don't want a huge database file. We want the storage to be taken on the disk, not the DB... We understand that using varbinary is more efficient, but we don't want a huge DB file...
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    3. COResponse to UPDATE #2: We already tried the tips you mentioned. What we have noticed is that it improves the file insertion time which causes the problem to occur more rapidly... :( We suspect that we are creating our files too rapidly for the file system to handle (as you pointed out in your update #1).
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