Kelly, My backup window is all the time. Backups start as early as 4pm to 8am the next morning. I haven't tried more than two max processes for one of my larger pools. I have 12 disk pools (drives) tied up until 8am or longer, plus not to mention the impact to the client backup/thrashing.
Backup Window is: This includes client backup, and mainframe job scheduler hooked in. Data writing to all 12 disk pools from 4pm -8am Starttime: 4pm Endtime:8am Currently: Backups occur during 4pm > 8am *I would tie up those drives from 4pm-8am TSM DB backups: 7am - TSM DB full backup *problem already, clients are overlapping tsm db backup. Not good. 8am 4pm - Disk Migrations to Onsite tape occurs -12 disk pools 9am -10am :Expiration runs daily 10am -checkout script runs to take dr tapes offsite *problem which my backup from last night isn't in the checkout, but the backup from the previous day. Between 2pm-8pm: Backup onsite tape to offsite tape pools * problem, that data from the night before is still in the library so it is not going offsite until the next day...yikes. 9am - 12am -running onsite 10 onsite tape pools reclamation throughout the day, as migrations end. These are staggered. 12am-7am: Run offsite reclamation, for 7 Offsite Pools 12am = TSM DB full backup Nancy Backhaus Enterprise Systems (716)887-7979 HealthNow, NY 716-887-7979 Kelly Lipp <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU> 12/06/2006 04:36 PM Please respond to "ADSM: Dist Stor Manager" To: ADSM-L@VM.MARIST.EDU cc: Subject: Re: Survey Question for Virtual Tape Users: What Vendors are you using for Virtual Tape? Based on your config I'm guessing you're having trouble completing the backup stg operations due to the fact that you get a single large process running to a single tape drive (or tape to tape) and that's taking too long. I would suggest using the copystg parameter on the primary tape pool and have that large database go directly to the primary and copy pool tapes simultaneously. That will eliminate the need to do the backup stg tapepool copypool operation during daily processing. I would also backup stg diskpool copypool before I migrate. Again, the goal, I assume, is to get the backup stg operations completed as early as possible. So in summary: 1. Large stuff goes directly to tapepool with copystgpool set to copypool. You have plenty of tape drives so there should not be any conflict during the backup. 2. backup stg diskpool copypool maxproc=10 (or whatever) first thing or maybe even start this during the backup window (careful with that as that can slow the performance of client backups and the backup stg operation). 3. Simultaneous with that, backup stg tapepool copypool (just in case something when afoul). 4. backup db 5. prepare 6. Then do the migrations and other housekeeping chores. With the number of tape drives you have, I'm thinking with this rearrangement you should be able to get the work done. I don't think a VTL would help you anyway! Sorry about that you hardware sellers! Thanks, Kelly J. Lipp VP Manufacturing & CTO STORServer, Inc. 485-B Elkton Drive Colorado Springs, CO 80907 719-266-8777 [EMAIL PROTECTED] -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Nancy L Backhaus Sent: Wednesday, December 06, 2006 1:20 PM To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] Survey Question for Virtual Tape Users: What Vendors are you using for Virtual Tape? Background: Tivoli Storage Manager Extended Edition 5.3.2.2 Op System AIX 5.3 ML 3 Nightly Backup 2 -2 1/2 TB Library - ADIC I2000 Scalar 18 LTO Tape Drives LTO 2 Tapes 600 slots Clients - 135 (Wintel) AIX -26 (Sybase, SQL, and DB2) We are looking into Virtual Tape Technology for our environment. 1 1/2s TB data first backs up to disk then to onsite tape then we make a backup of our onsite tape to a copy stgpool and store those tapes offsite for disaster recovery. The other 1 TB of data is a DB2 database that we back up directly to onsite tape and of course make a copy of the onsite tape to offsite tape for disaster recovery. We can't get our backups done and out the door to meet our RTO objective. We are looking to add a VTL and reduce our tape drive and slot capacity in a new library to offset some of the cost for a virtual tape library. We would like to also take advantage of collocation and setup library sharing too. I would like to know what vendors you are using for virtual tape? Pros/Cons(Any regrets, Success Stories). Thank You. Nancy Backhaus Enterprise Systems (716)887-7979 HealthNow, NY 716-887-7979 CONFIDENTIALITY NOTICE: This email message and any attachments are for the sole use of the intended recipient(s) and may contain proprietary, confidential, trade secret or privileged information. Any unauthorized review, use, disclosure or distribution is prohibited and may be a violation of law. If you are not the intended recipient or a person responsible for delivering this message to an intended recipient, please contact the sender by reply email and destroy all copies of the original message.