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Failed To Flush Tape Driver Buffer

Disable NTFS compression on backup repository volume.

More InformationFor Windows Server 2008(R2) please refer to Microsoft KB for a detailed description of the issue:http://support.microsoft.com/kb/967351This issue is resolved in Windows Server 2012(R2), I've been working with them for over 25 years. Use a standalone drive, if possible. - use "scanner -n -mvv \\.\Tape0". Often this isn't viable if you've got legacy BTrieve apps on your server/s. 0 Kudos Reply The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Check This Out

or scanner -mvv ...). For instance, tape marks on the original 8mm drives consumed the equivalent of several MBytes of data space. So the first 100 records would be OK above because they were written at BOT. The problems were database related and could be resolved by replacing the database, but it reapears everytime after several weeks.cheers Dennis.

This page has been accessed 9,893 times. Re: Device error Hrvoje Crvelin May 28, 2014 12:56 PM (in response to tech88kur) Did you check error counts on switch ports? However, what's really happening is that the physical records are still 1 KByte, but only the first 512 bytes are used. If the device supports (or is configure for) variable record sizes, you can write a record of any length, although the transport or kernel driver may impose upper or lower bounds.

Some drives try to deal with this issue at EOM (the usual place to get a write error) by knowing internally how much media is left. A write tape mark operation will go ahead and flush what it had in the buffers up to that point in the hopes there is enough room. I'm wondering because basic 2008 is not supported.Thanks. The functions are typically called "forward space file" (fsf) and "backward space file" (bsf) and always allow a count of the number of files to skip (space) over.

rewind), the driver will write a tape mark. One other oddity about fixed record sizes. I hope i had done this the right way. This ensure that in normal circumstances all files end with a tape mark.

Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.Tek-Tips Posting Policies Jobs Jobs from Indeed What: Where: jobs by HomeForumsServer RackBack-up SystemsCA: ARCserve back-up Forum Arcserve7 Netware6 Failed to What happens when you try to read past EOM varies by kernel driver. This means the only time you know all your data has successfully made it to tape is after you issue a write tape mark command and it returns without error. To start viewing messages, select the forum that you want to visit from the selection below.

However, the effort involved, especially to be portable across hardware and OS's, is a major undertaking. foggy Veeam Software Posts: 13388 Liked: 968 times Joined: Mon Jul 11, 2011 10:22 am Full Name: Alexander Fogelson Private message Top Re: V9 backup errors with "Failed to flush Raw SCSI Some of the above statements about buffer flushing are not strictly true. Showing results for  Search instead for  Do you mean  Menu Categories Solutions IT Transformation Internet of Things Topics Big Data Cloud Security Infrastructure Strategy and Technology Products Cloud Integrated Systems Networking

Logically, it looks fine. http://justjoomla.net/failed-to/failed-to-lock-vertex-buffer-gmod.html It would be valid to read all 100 records, and the tape mark, then start writing a second file. If the buffer you supply the read(2) function is not large enough, the kernel driver may fill in whatever you do provide with as much as it can, or it may v.Eremin Veeam Software Posts: 11783 Liked: 852 times Joined: Fri Oct 26, 2012 3:28 pm Full Name: Vladimir Eremin Private message Top Re: v7 Backup Copy Job removable media (rotated

If you use sh/ksh/bash: t=/dev/whatever # use this for sh/ksh/bash f1=/etc/hosts # need a file >= 1 KByte f2=/etc/services # need a file >= 1 KByte If you use csh/tcsh: set If you were using a "no-rewind" device name, and you were reading the device, and you are using BSD semantics, the tape will be left positioned exactly where it is, which Other devices have a special servo track with timing marks to know exactly how far down the tape the transport is. http://justjoomla.net/failed-to/ob-end-flush-failed-to-send-buffer-of-zlib-output-compression.html The logs are not very conclusive1) I disabled CDI and changed it to none2) tried scanner -m, please find beloe outputI not good at using scanner.

But this is technically impossible. The data will all be there, it just needs to be recombined. Thanks!

This will not update the info in the media index and it will provide more info and hopefully tell you a bit more when the problem re-occurs. - If it does,

Buffer Flushing Note that if the drive has internal data buffers, write(2) calls are probably not actually getting your data to the media. Verify the device configuration. This is because the first dd leaves the tape after the first record of the first file so the second dd reads the second record of the first file, which should It might have been all of it and the error was for the tape mark itself.

Sorry a bit of Aussie humor or sarcasm there.How about kicking this up the line as it seem to be too hard to solve for the guys that are looking at Write There is no difference between BSD and SysV semantics for writing. In theory, you should be able to start writing at any point. navigate here Thank you!

It's also possible to get false counts from data that, at high speed, looks like a tape mark, resulting in stopping too soon. We found that the only recyclable tapes were getting prematurely full, but if deleted their catalog entries and re-labeled them then they worked absolutely fine. Many devices that support variable record lengths also support a fixed record length option. Can you try to point jobs to a different location just to limit a scope of potential suspects?Also, do you run default Windows Server 2008 or it has SP 2 installed?