OK, seems we have come to a solution that I thought I would share. According to our Messaging admin, there are several EV partitions that he has "closed", which is to say will no longer be accepting new writes and only reads. So I am effectvley backing up the same unchanged data over and over. Thus, I have been able to exclude about 5 partitions from that server and simply bpexpdate the tapes with the last full backup of those partitions for 7 years (our retention). This means I am backing up only changing partitions, hence smaller amounts of data and henceshould bring our backup window to within a 20hr period.
________________________________ From: WEAVER, Simon (external) [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 11, 2007 2:07 AM To: Kennedy, Cameron; veritas-bu@mailman.eng.auburn.edu Subject: RE: [Veritas-bu] Enterprise Vault backup - increase throughput .... Hi I am in a similar boat, and although the backups go on for a while, I am going to implement a SAN Media Server to help with this. As a rule I turn off any AV, disk i/O software on this box during the backup and ensure tracker.exe is not tunning. HTH a bit.... Regards Simon Weaver 3rd Line Technical Support Windows Domain Administrator EADS Astrium Limited, B23AA IM (DCS) Anchorage Road, Portsmouth, PO3 5PU Email: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kennedy, Cameron Sent: Tuesday, July 10, 2007 1:27 PM To: veritas-bu@mailman.eng.auburn.edu Subject: [Veritas-bu] Enterprise Vault backup - increase throughput .... Hi, Anyone have some experiences to share about getting maximum throughput from their EV backups? We have Netbackup 5.3mp4 running on AIX with 1 AIX media server, We have Enterprise Vault (Windows 2003 NTFS) with a GB backup LAN. I am struggling to get greater than 2500KB/sec backup speed from our vault stores partition. I know that the greatest issue is that this partition has many tiny files and that this adds overhead in backing up them up. Example: We have right now 606GB consisting of ~983000 files on this partition alone. I get a throughput of ~2500KB/s according to the Netbackup console but I would say it is a little lower based on my math. I have turned off VSP caching, which did help by ~1500KB/s. We have turned on the EV collector which should go about collecting the small files into larger CAB files, however, I am still seeing long delays in the time it takes for backups. During testing, I have found that I can kick off a new stream and backup another partition on the same server and get a throughput of 10,000KB/s which leads me to believe it is not a network related setup issue. Is there anything else that someone has done to increase throughput, or can anyone share what type of performance they are getting? I am considering a flashcopy scenario of the SAN disk associated with this server which won't fix the issue, but atleast move it from the production server to an offline situation. I am also considering, doing a raw partition backup (haven't used this method before but read about it in the admin guide), knowing that only a restore of the entire partition would be an option in a DR situation. thanks for any advice. ________________________________ This email (including any attachments) is confidential. If you are not the intended recipient you must not copy, use, disclose, distribute or rely on the information contained in it. If you have received this email in error, please notify the sender immediately by reply email and delete the email from your system. Confidentiality and legal privilege attached to this communication are not waived or lost by reason of mistaken delivery to you. Lend Lease does not guarantee that this email or the attachment(s) are unaffected by computer virus, corruption or other defects. Lend Lease may monitor incoming and outgoing emails for compliance with its Email Policy. Please note that our servers may not be located in your country. This email (including any attachments) may contain confidential and/or privileged information or information otherwise protected from disclosure. If you are not the intended recipient, please notify the sender immediately, do not copy this message or any attachments and do not use it for any purpose or disclose its content to any person, but delete this message and any attachments from your system. Astrium disclaims any and all liability if this email transmission was virus corrupted, altered or falsified. --------------------------------------------------------------------- Astrium Limited, Registered in England and Wales No. 2449259 Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, England
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