What Is A Soft Write Error
Still, I do recall seeing instructions not to clean unless instructed to do so. 0 This discussion has been inactive for over a year. Is it required that I upgrade to Sierra Underbrace outside parentheses Given that ice is less dense than water, why doesn't it sit completely atop water (rather than slightly submerged)? If so, then the errors aren't caused by your hardware or your software that is doing the backup. The leader for each tape does include a cleaning section, though. http://itechnologysolutionsllc.com/what-is/what-is-a-soft-read-error-backup-exec.php
It will check the hardwre to rule that out as being the cause. The following excerpt is from Quantum Hardware Technical Bulletin 8706: Backup Exec collects LTO drive soft write errors using SCSI Log Page 0x02, Parameter 3 which is defined by T10 as From the LTO ECC specification: The ECC (error correction code) used by LTO-Ultrium is powerful enough to ensure reliable recovery of data even with the loss of one of eight tracks Go by yourself a few tapes directly from Dell and try to duplicate this issue after using Symantec's drivers and tuning your tape drive to avoid a "shoeshine effect" To
about 75% of them... Symantec encourages users to enable the Verify option on backup jobs to ensure the integrity of the data being written to the media for all Backup Jobs, regardless of this condition. This was kind of braindumpy for me so I hope you find it useful. Tandberg Data is one of the manufacturers who reports the true soft error rate and doesn't hide it.
So we hope to learn what is causing them and preferably stop or limit them. 0 LVL 87 Overall: Level 87 Storage 34 Storage Software 24 Message Active today Expert Microsoft Office 2016 Microsoft Office 2016 is a suite of productivity applications that includes Microsoft Word, Microsoft Excel, Microsoft PowerPoint and Microsoft Outlook. indeego Ars Tribunus Angusticlavius Tribus: I block ads, delete this account Registered: Jun 23, 1999Posts: 8241 Posted: Mon Jan 28, 2008 9:49 am We had the same thing with LTO2. The tape drive and tapes are brand new.
I have not been able to locate a causality in the logs. ITOperations ( Find Out More About This Site ) IT systems management Systems management is the administration of the information technology systems in an enterprise. They are signs of bad media or a worn head and therefore affect the chance of restoring successfully. 0 LVL 23 Overall: Level 23 Storage Software 20 Storage 10 Message https://vox.veritas.com/t5/Backup-Exec/explanation-about-soft-hard-read-write-errors-on-backup-tapes/td-p/715603 But there have been no hard write or any read errors, and verify tasks complete fine.By changing some buffer settings for the tape drive and installing various firmware and drivers update,
Good call on the drivers, they are a bit outdated, I will update and see what happens. Read More about Proactive Hot Sparing here: http://www.emc.com/collateral/software/white-papers/c1069-clariion-global-hot-spares-ldv.pdf Report Abuse Like Show 0 Likes (0) Go to original post Actions More Like This Retrieving data ... Fulgan Ars Tribunus Angusticlavius et Subscriptor Tribus: Swiss iguanas Registered: Jun 28, 2000Posts: 7508 Posted: Mon Jan 28, 2008 7:24 am Using a HP LTO-3 tape drive and BE 11d, I The Hours In Use displays how long the drive has been in operation (i.e.
Thousands (like ~20000 per 30+GB backup) of Soft Write errors, but rarely any hard errors. https://support.software.dell.com/netvault-backup/kb/92502 Article:000037852 Publish: Article URL:http://www.veritas.com/docs/000037852 Support / Article Sign In Remember me Forgot Password? Don't have a Veritas Account? Create a Veritas Account now! Welcome First Last Your Profile Logout Sign in Treat this like any other trouble shooting exercise. Join the community Back I agree Powerful tools you need, all for free.
Nothing has changed in the number off soft-errors so were thinking of leaving the backup at this state. Maybe to get less errors you could try out different tape brands, and then in future only buy the ones which have the least such errors. 0 LVL 4 Overall: It is the only device connected to a dedicated "Dell" Adaptec 39160 card.When doing a D2D2T backup of about 50 GB of data, I was initially seeing about 6M soft write Solution The Statistics tab of the Drive Properties (Figure 1) can be useful to determine Soft Write Errors and Hard Write Errors.
- I believe I have read most of the comments throughly but if I missed something and this is a repeat certainly let me know.
- I say "almost" because we made two things while doing the maintenance plan.
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- Not being onsite that much makes it even more difficult to solve.
And third, which I guess was very important to the whole "package" of changes was that we first deleted the virtual memory, than recreated it on the indipendent disk volume and I know that backing up data from another server can demolish your tape-drive, especially if the drive continuously has to stop and start while waiting for the data. I would need to put some thought into how to troubleshoot that. Windows Server ( Find Out More About This Site ) Microsoft Windows Server Datacenter Abstraction Layer (DAL) The Microsoft Windows Server Datacenter Abstraction Layer (DAL) is a software framework intended to
Backup Exec calculates soft-write errors using a certain T10 SCSI Specifications Log Page and Parameter in one of two ways. 1. Edited to add: I don't have hard error on every tape. I poked around their site but couldn't find anything for download.Update:I just ran a straight file backup of the 1 GB .BKF files on disk (instead of duplicating the backup).
So every Friday-job runs on either a brand new tape, or on a tape wich has only been used a couple of times.
Compliance ( Find Out More About This Site ) chief risk officer (CRO) The chief risk officer (CRO) is the corporate executive tasked with assessing and mitigating significant competitive, regulatory and Proactive Disk Replacement won't do any harm if you are highly concerned. Suggested Solutions Title # Comments Views Activity Restored 2012 OS onto larger volume, can not use extra space 13 39 56d Best practice on creating a second drive in VM environment Check the NIC perhaps update the driver for it.
This very detailed examination of data and the resultant potential for large numbers of rewrites can lead to a high number of soft errors being reported by a Quantum LTO drive. Not to forget - we have changed the LTO tapes in the library, becuase it was the "end of the year" maintenance plan which, among all other things, include adding new Second, although not very much likely to be the source of the problem, we changed the celaning tape in the library and made an extra cleaning to the once that are OPSEC (operational security) OPSEC (operational security) is an analytical process that identifies assets such as sensitive corporate information or trade secrets, and determines the controls required to protect these assets.
Internet applications - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ... In any case, I'm not too terribly worked up over it, backups work, and average throughput (RAID-5 to Tape) is around 300-350MB/Min. If soft write errors are seen, it may indicate the beginning of a problem. Join Now For immediate help use Live now!
Also i found a couple of hard write errors and our vendor informed us to replace the tapes every year...We had been using the same tapes for about 4 years :) Make sure your flare version is up-to-date.glen Report Abuse Like Show 0 Likes (0) 3. That pretty much leaves the servers being backed up. Re: Software Write Error for a particular FC Disk Suman Pinnamaneni Jan 22, 2013 5:44 AM (in response to TonyJK) Hi, May I know if any Event code that is associated
asked 5 years ago viewed 1691 times active 5 years ago Blog Stack Overflow Podcast #93 - A Very Spolsky Halloween Special Related 5Symantec Backup Exec 12 Tape Alert1Backup Solution for Obviously, this is a high number. Ad Choices current community blog chat Server Fault Meta Server Fault your communities Sign up or log in to customize your list.