Re: [Veritas-bu] Netbackup verify at write time
When I worked at a major pharmaceutical we had a procedure to do periodic test restores and compare that to the data that should have been there. This was always fun given things that don't backup such as door files on Sun etc... FDA Validation requirements make S-OX look like a walk in the park. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of spaldam Sent: Wednesday, July 30, 2008 11:38 PM To: VERITAS-BU@mailman.eng.auburn.edu Subject: [Veritas-bu] Netbackup verify at write time The best thing I can say is: Make Multiple Copies. This is why I always make sure I have at least 2 copies of my next longest retention before expiring the shorter retention(S). For example: If you do weekly full backups, keep you're daily incremental backups for at least 2 weeks. In turn, if you're monthly backups have a longer retention, keep your weekly full backups for at least 2 months. Even if you verify the tape using a restore to be absolutely certain, that tape will eventually deteriorate, and could potentially get damaged. Any kind of electronic media is far from indestructible. If you truly paranoid, don't rely on your backup system as your only point of recovery. Backup systems should be first and foremost designed for disaster recovery (although if you have the funds replication works even better), and secondarily for long term legal and archival purposes, and lastly as an operational recovery mechanism. There are much better ways to insure operational recovery (i.e. versioning filesystems) if you are truly that paranoid. I'm not saying your backup system can't do all three, and do them very well, but there are other methods that work better for giving your management the warm fuzzy they are looking for. Of course if all they really want is a warm fuzzy, just find some marketing documents that say the likely hood of a problem is extremely low (there are plenty of them out there). +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu -- CONFIDENTIALITY NOTICE: This e-mail may contain privileged or confidential information and is for the sole use of the intended recipient(s). If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you. -- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Netbackup verify at write time
Jeff Lightner said: FDA Validation requirements make S-OX look like a walk in the park. What HE said! This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Netbackup verify at write time
-Original Message- From: [EMAIL PROTECTED] [mailto:veritas-bu-[EMAIL PROTECTED] On Behalf Of Curtis Preston Sent: Thursday, July 31, 2008 12:44 PM To: Jeff Lightner; VERITAS-BU@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Netbackup verify at write time Jeff Lightner said: FDA Validation requirements make S-OX look like a walk in the park. What HE said! Agree wholeheartedly! Stuart, thoughts? Knut ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Netbackup verify at write time
The moral of the story here is that if you want to be sure that your backup data is gooddo a restore test. Don't trust the bpverify function. Stuart Liddle | Senior Consultant GlassHouse Technologies, Inc. C: +1 805 822 9273 | [EMAIL PROTECTED] l www.glasshouse.com Infrastructure :: Optimized -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Curtis Preston Sent: Tuesday, July 29, 2008 11:21 PM To: Justin Piszcz; VERITAS-BU@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Netbackup verify at write time Bpverify verifies far less than you think it does. The more I learned about it, the less interested I was in it. Curtis Preston | VP Data Protection GlassHouse Technologies, Inc. T: +1 760 710 2004 | C: +1 760 419 5838 | F: F: +1 760 710 2009 [EMAIL PROTECTED] | www.glasshouse.com Infrastructure :: Optimized -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Justin Piszcz Sent: Tuesday, July 29, 2008 11:18 AM To: VERITAS-BU@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Netbackup verify at write time If you use bpverify, it reads the media and compares the contents of the media to the catalog. It does not verify the data itself, only the contents of the catalog as you said. I have seen restores fail and bpverify says the tape is ok. Justin. On Tue, 29 Jul 2008, Jim H wrote: If you use bpverify, it reads the media and compares the contents of the media to the catalog. It is faster than a restore but Ed is right, it will not tell you if you are backing up the right things. It should not be affected by changing files on the client though. +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
[Veritas-bu] Netbackup verify at write time
The best thing I can say is: Make Multiple Copies. This is why I always make sure I have at least 2 copies of my next longest retention before expiring the shorter retention(S). For example: If you do weekly full backups, keep you're daily incremental backups for at least 2 weeks. In turn, if you're monthly backups have a longer retention, keep your weekly full backups for at least 2 months. Even if you verify the tape using a restore to be absolutely certain, that tape will eventually deteriorate, and could potentially get damaged. Any kind of electronic media is far from indestructible. If you truly paranoid, don't rely on your backup system as your only point of recovery. Backup systems should be first and foremost designed for disaster recovery (although if you have the funds replication works even better), and secondarily for long term legal and archival purposes, and lastly as an operational recovery mechanism. There are much better ways to insure operational recovery (i.e. versioning filesystems) if you are truly that paranoid. I'm not saying your backup system can't do all three, and do them very well, but there are other methods that work better for giving your management the warm fuzzy they are looking for. Of course if all they really want is a warm fuzzy, just find some marketing documents that say the likely hood of a problem is extremely low (there are plenty of them out there). +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
[Veritas-bu] Netbackup verify at write time
If you use bpverify, it reads the media and compares the contents of the media to the catalog. It is faster than a restore but Ed is right, it will not tell you if you are backing up the right things. It should not be affected by changing files on the client though. +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Netbackup verify at write time
If you use bpverify, it reads the media and compares the contents of the media to the catalog. It does not verify the data itself, only the contents of the catalog as you said. I have seen restores fail and bpverify says the tape is ok. Justin. On Tue, 29 Jul 2008, Jim H wrote: If you use bpverify, it reads the media and compares the contents of the media to the catalog. It is faster than a restore but Ed is right, it will not tell you if you are backing up the right things. It should not be affected by changing files on the client though. +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Netbackup verify at write time
How many folks use this? Is it intensive? What is the recommendation for running this? Thanks, Frank - Original Message From: Jim H [EMAIL PROTECTED] To: VERITAS-BU@mailman.eng.auburn.edu Sent: Tuesday, July 29, 2008 10:36:30 AM Subject: [Veritas-bu] Netbackup verify at write time If you use bpverify, it reads the media and compares the contents of the media to the catalog. It is faster than a restore but Ed is right, it will not tell you if you are backing up the right things. It should not be affected by changing files on the client though. +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Netbackup verify at write time
Nor will it tell you if your backups are any good. Only a restore will tell you that. Jim -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Frank Pettinato Sent: Tuesday, July 29, 2008 11:18 AM To: VERITAS-BU@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Netbackup verify at write time How many folks use this? Is it intensive? What is the recommendation for running this? Thanks, Frank - Original Message From: Jim H [EMAIL PROTECTED] To: VERITAS-BU@mailman.eng.auburn.edu Sent: Tuesday, July 29, 2008 10:36:30 AM Subject: [Veritas-bu] Netbackup verify at write time If you use bpverify, it reads the media and compares the contents of the media to the catalog. It is faster than a restore but Ed is right, it will not tell you if you are backing up the right things. It should not be affected by changing files on the client though. +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Netbackup verify at write time
Bpverify verifies far less than you think it does. The more I learned about it, the less interested I was in it. Curtis Preston | VP Data Protection GlassHouse Technologies, Inc. T: +1 760 710 2004 | C: +1 760 419 5838 | F: F: +1 760 710 2009 [EMAIL PROTECTED] | www.glasshouse.com Infrastructure :: Optimized -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Justin Piszcz Sent: Tuesday, July 29, 2008 11:18 AM To: VERITAS-BU@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Netbackup verify at write time If you use bpverify, it reads the media and compares the contents of the media to the catalog. It does not verify the data itself, only the contents of the catalog as you said. I have seen restores fail and bpverify says the tape is ok. Justin. On Tue, 29 Jul 2008, Jim H wrote: If you use bpverify, it reads the media and compares the contents of the media to the catalog. It is faster than a restore but Ed is right, it will not tell you if you are backing up the right things. It should not be affected by changing files on the client though. +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
[Veritas-bu] Netbackup verify at write time
Guys management here are fussing around how are we sure backups are successful or they can be restored from without doing an actual restore. I was under the impressions that some sort of verify or sum check operation was done at write time and that if a status 0 was returned it was a pretty good indication backups would be able to be restored. Taking all physical factors aside ( e.g tapes being bashed around making them unusable ) the other way to verify is using bpverify but i'm just wondering if its needed. Anyone shed any light on this for me? I know the only sure fire way of knowing a backup is fine is performing a restore, but unless a full restore is done (which has its own problems of space etc) then what other assurances are there? Netbackup 5.0MP7, 6.0MP4 on a mixture of Solaris 9 and 10 Cheers ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Netbackup verify at write time
Tape drives implement ECC much like memory. If you trust your memory you should trust your tape drive assuming you don't throw them around. http://findarticles.com/p/articles/mi_qa3751/is_200307/ai_n9275590/pg_8 Regards Peter Marelas -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave Markham Sent: Wednesday, 23 July 2008 8:45 PM To: veritas-bu@mailman.eng.auburn.edu Subject: [Veritas-bu] Netbackup verify at write time Guys management here are fussing around how are we sure backups are successful or they can be restored from without doing an actual restore. I was under the impressions that some sort of verify or sum check operation was done at write time and that if a status 0 was returned it was a pretty good indication backups would be able to be restored. Taking all physical factors aside ( e.g tapes being bashed around making them unusable ) the other way to verify is using bpverify but i'm just wondering if its needed. Anyone shed any light on this for me? I know the only sure fire way of knowing a backup is fine is performing a restore, but unless a full restore is done (which has its own problems of space etc) then what other assurances are there? Netbackup 5.0MP7, 6.0MP4 on a mixture of Solaris 9 and 10 Cheers ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
