Re: Resend - Policy and DRP question
I'll take a stab at this. You now keep 10 versions of a file and you do a daily backup. It sounds like you want to be able to guarantee your ability to roll back or recover the TSM the server to 10 days ago. If that is the case you would need to make sure that: - The "delete volhist" command was changed to keep 10 days of DB tapes. - The resuse delay on empty tapes should be set to 10 days also. And yes, you will want to keep the last 10 days of DB tapes offsite to meet your DR objectives. In our situation, our default management class keeps "up to 5 copies of a file up to 30 days. And we keep the last couple versions for 180 days once a file is deleted." Does that mean we should keep 30 days worth of DB tapes? No. we keep a week's worth of DB backups offsite for DR because we could never really seeing ourselves rolling back the TSM server 8 days. It think that 1 or 2 weeks is pretty standard for folks on this list. Ben -Original Message- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Paul Dudley Sent: Monday, April 10, 2006 10:49 PM To: ADSM-L@VM.MARIST.EDU Subject: Resend - Policy and DRP question I sent this query a week ago but have not received a reply back. I am resending in the hope that someone can offer some advice. We have TSM version 5.2 I have changed the standard policy so that we now keep the 10 latest versions of each file rather than 7. I have also changed our del volhist to tod=today-10 where it was previously 7. I have been told that previously we had to keep the 7 latest copy tapes and db tapes offsite for DRP to ensure that we could recover complete servers. With the changes that I have made does this mean that we have to now keep the 10 latest tapes offsite for complete DRP? Paul Dudley ANL IT Operations Dept. [EMAIL PROTECTED] ANL DISCLAIMER This e-mail and any file attached is confidential, and intended solely to the named addressees. Any unauthorised dissemination or use is strictly prohibited. If you received this e-mail in error, please immediately notify the sender by return e-mail from your system. Please do not copy, use or make reference to it for any purpose, or disclose its contents to any person.
Re: Resend - Policy and DRP question
The question is: does this mean that we have to now keep the 10 latest tapes offsite for complete DRP? >From what I am seeing it says you are now defining the process to keep 10 >tapes un-used. If you keep them off site, so much the better for disaster >preparedness. You do not have to change the retention of your database backups to retain additional versions of data. Changing the 'del volhist' you did is reasonable since you are changing the retention of database tapes too the same retention. Now I could be totally off base, lets see if a more experienced eye has an opinion too. -Original Message- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Paul Dudley Sent: Monday, April 10, 2006 11:49 PM To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] Resend - Policy and DRP question I sent this query a week ago but have not received a reply back. I am resending in the hope that someone can offer some advice. We have TSM version 5.2 I have changed the standard policy so that we now keep the 10 latest versions of each file rather than 7. I have also changed our del volhist to tod=today-10 where it was previously 7. I have been told that previously we had to keep the 7 latest copy tapes and db tapes offsite for DRP to ensure that we could recover complete servers. With the changes that I have made does this mean that we have to now keep the 10 latest tapes offsite for complete DRP? Paul Dudley ANL IT Operations Dept. [EMAIL PROTECTED] ANL DISCLAIMER This e-mail and any file attached is confidential, and intended solely to the named addressees. Any unauthorised dissemination or use is strictly prohibited. If you received this e-mail in error, please immediately notify the sender by return e-mail from your system. Please do not copy, use or make reference to it for any purpose, or disclose its contents to any person. Privileged and Confidential: The information contained in this e-mail message is intended only for the personal and confidential use of the intended recipient(s). If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message.
Re: Resend - Policy and DRP question
You should keep ALL of your copypool tapes offsite. You should keep TSM db backup tapes offsite to match your 'del volhist'. You should set your reuse delay for your offsite copy storage pool to match the length of time you keep your tsm db backups, in your case 10 days. This last requirement of good DR is why most folks only keep a small number of TSM DB backups. We have reuse delay and DRMDBBACKUPEXPIREDAYS set to 5 days. David Ehresman University of Louisville >>> [EMAIL PROTECTED] 4/11/2006 12:49:01 AM >>> I sent this query a week ago but have not received a reply back. I am resending in the hope that someone can offer some advice. We have TSM version 5.2 I have changed the standard policy so that we now keep the 10 latest versions of each file rather than 7. I have also changed our del volhist to tod=today-10 where it was previously 7. I have been told that previously we had to keep the 7 latest copy tapes and db tapes offsite for DRP to ensure that we could recover complete servers. With the changes that I have made does this mean that we have to now keep the 10 latest tapes offsite for complete DRP? Paul Dudley ANL IT Operations Dept. [EMAIL PROTECTED] ANL DISCLAIMER This e-mail and any file attached is confidential, and intended solely to the named addressees. Any unauthorised dissemination or use is strictly prohibited. If you received this e-mail in error, please immediately notify the sender by return e-mail from your system. Please do not copy, use or make reference to it for any purpose, or disclose its contents to any person.
Resend - Policy and DRP question
I sent this query a week ago but have not received a reply back. I am resending in the hope that someone can offer some advice. We have TSM version 5.2 I have changed the standard policy so that we now keep the 10 latest versions of each file rather than 7. I have also changed our del volhist to tod=today-10 where it was previously 7. I have been told that previously we had to keep the 7 latest copy tapes and db tapes offsite for DRP to ensure that we could recover complete servers. With the changes that I have made does this mean that we have to now keep the 10 latest tapes offsite for complete DRP? Paul Dudley ANL IT Operations Dept. [EMAIL PROTECTED] ANL DISCLAIMER This e-mail and any file attached is confidential, and intended solely to the named addressees. Any unauthorised dissemination or use is strictly prohibited. If you received this e-mail in error, please immediately notify the sender by return e-mail from your system. Please do not copy, use or make reference to it for any purpose, or disclose its contents to any person.
Re: Policy and DRP question
TSM is not tape-oriented: it is stored-object-oriented. The copy storage pool contains an image of your primary pool(s) according to the policies for the objects stored in the primary pool. Your DR practices need to keep a copy of all data objects offsite, not just a fixed number of tapes. You're not preserving media - you're preserving data. Richard Sims On Apr 4, 2006, at 12:34 AM, Paul Dudley wrote: We have TSM version 5.2 I have changed the standard policy so that we now keep the 10 latest versions of each file rather than 7. I have also changed our del volhist to tod=today-10 where it was previously 7. I have been told that previously we had to keep the 7 latest copy tapes and db tapes offsite for DRP to ensure that we could recover complete servers. With the changes that I have made does this mean that we have to now keep the 10 latest tapes offsite for complete DRP?
Policy and DRP question
We have TSM version 5.2 I have changed the standard policy so that we now keep the 10 latest versions of each file rather than 7. I have also changed our del volhist to tod=today-10 where it was previously 7. I have been told that previously we had to keep the 7 latest copy tapes and db tapes offsite for DRP to ensure that we could recover complete servers. With the changes that I have made does this mean that we have to now keep the 10 latest tapes offsite for complete DRP? Paul Dudley ANL IT Operations Dept. [EMAIL PROTECTED] ANL DISCLAIMER This e-mail and any file attached is confidential, and intended solely to the named addressees. Any unauthorised dissemination or use is strictly prohibited. If you received this e-mail in error, please immediately notify the sender by return e-mail from your system. Please do not copy, use or make reference to it for any purpose, or disclose its contents to any person.
