[Veritas-bu] Multiplexing on destaging basic disk dssu
Hello All, Is there a way to do the above? If so how? The tape storage unit is already set to allow multiplexing, but the destaging is only using one job per tape drive at a time. NBU 7.0 Thank you in advance for any advice, Patrick Whelan VERITAS Certified NetBackup Support Engineer for UNIX. VERITAS Certified NetBackup Support Engineer for Windows. mailto:netbac...@whelan-consulting.co.uk netbac...@whelan-consulting.co.uk http://www.linkedin.com/in/patrickjosephwhelan Description: cid:image001.gif@01C99E80.E2717A60 image001.gifimage003.jpg___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Multiplexing on destaging basic disk dssu
No, there is no way to achieve this. You can only use more drives to speed up the process stefanos. From: veritas-bu-boun...@mailman.eng.auburn.edu [mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of Patrick Sent: Tuesday, March 01, 2011 1:41 PM To: veritas-bu@mailman.eng.auburn.edu Subject: [Veritas-bu] Multiplexing on destaging basic disk dssu Hello All, Is there a way to do the above? If so how? The tape storage unit is already set to allow multiplexing, but the destaging is only using one job per tape drive at a time. NBU 7.0 Thank you in advance for any advice, Patrick Whelan VERITAS Certified NetBackup Support Engineer for UNIX. VERITAS Certified NetBackup Support Engineer for Windows. mailto:netbac...@whelan-consulting.co.uk netbac...@whelan-consulting.co.uk http://www.linkedin.com/in/patrickjosephwhelan Description: cid:image001.gif@01C99E80.E2717A60 image002.gifimage003.jpg___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Multiplexing on destaging basic disk dssu
Believe it or not I am actually looking into this! There are some technotes on the behaviour of this, because I am a little hacked off a DSSU is using 6 tapes for each job!!! http://www.symantec.com/business/support/index?page=contentid=TECH44719 This is just one of them Simon From: veritas-bu-boun...@mailman.eng.auburn.edu [mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of rusty.ma...@sungard.com Sent: Tuesday, March 01, 2011 5:31 PM To: Patrick Cc: veritas-bu@mailman.eng.auburn.edu; veritas-bu-boun...@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Multiplexing on destaging basic disk dssu I believe you can't MPX duplications because of a limitation within the bpduplicate process. It will allow you to keep already MPX'ed images MPX'ed, but you can't MPX a duplication job that isn't MPX'ed already, which is your case since they are on disk. The jobs coming off your disk should be fast enough to keep this from happening. If it's not fast enough, you'll need to look to tuning your components. Rusty Major, MCSE, BCFP, VCS ▪ Sr. Storage Engineer ▪ SunGard Availability Services ▪ 757 N. Eldridge Suite 200, Houston TX 77079 ▪ 281-584-4693 Keeping People and Information Connected® ▪ http://availability.sungard.com/ http://availability.sungard.com/ P Think before you print CONFIDENTIALITY: This e-mail (including any attachments) may contain confidential, proprietary and privileged information, and unauthorized disclosure or use is prohibited. If you received this e-mail in error, please notify the sender and delete this e-mail from your system. Patrick netbac...@whelan-consulting.co.uk Sent by: veritas-bu-boun...@mailman.eng.auburn.edu 03/01/2011 07:06 AM To veritas-bu@mailman.eng.auburn.edu cc Subject [Veritas-bu] Multiplexing on destaging basic disk dssu Hello All, Is there a way to do the above? If so how? The tape storage unit is already set to allow multiplexing, but the destaging is only using one job per tape drive at a time. NBU 7.0 Thank you in advance for any advice, Patrick Whelan VERITAS Certified NetBackup Support Engineer for UNIX. VERITAS Certified NetBackup Support Engineer for Windows. netbac...@whelan-consulting.co.uk mailto:netbac...@whelan-consulting.co.uk http://www.linkedin.com/in/patrickjosephwhelan ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu 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. -o- Astrium Limited, Registered in England and Wales No. 2449259 Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, EnglandATT468691.gifATT468692.jpg___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Multiplexing on destaging basic disk dssu
Another one... http://www.symantec.com/business/support/index?page=contentid=TECH44996 Simon From: veritas-bu-boun...@mailman.eng.auburn.edu [mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of rusty.ma...@sungard.com Sent: Tuesday, March 01, 2011 5:31 PM To: Patrick Cc: veritas-bu@mailman.eng.auburn.edu; veritas-bu-boun...@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Multiplexing on destaging basic disk dssu I believe you can't MPX duplications because of a limitation within the bpduplicate process. It will allow you to keep already MPX'ed images MPX'ed, but you can't MPX a duplication job that isn't MPX'ed already, which is your case since they are on disk. The jobs coming off your disk should be fast enough to keep this from happening. If it's not fast enough, you'll need to look to tuning your components. Rusty Major, MCSE, BCFP, VCS ▪ Sr. Storage Engineer ▪ SunGard Availability Services ▪ 757 N. Eldridge Suite 200, Houston TX 77079 ▪ 281-584-4693 Keeping People and Information Connected® ▪ http://availability.sungard.com/ http://availability.sungard.com/ P Think before you print CONFIDENTIALITY: This e-mail (including any attachments) may contain confidential, proprietary and privileged information, and unauthorized disclosure or use is prohibited. If you received this e-mail in error, please notify the sender and delete this e-mail from your system. Patrick netbac...@whelan-consulting.co.uk Sent by: veritas-bu-boun...@mailman.eng.auburn.edu 03/01/2011 07:06 AM To veritas-bu@mailman.eng.auburn.edu cc Subject [Veritas-bu] Multiplexing on destaging basic disk dssu Hello All, Is there a way to do the above? If so how? The tape storage unit is already set to allow multiplexing, but the destaging is only using one job per tape drive at a time. NBU 7.0 Thank you in advance for any advice, Patrick Whelan VERITAS Certified NetBackup Support Engineer for UNIX. VERITAS Certified NetBackup Support Engineer for Windows. netbac...@whelan-consulting.co.uk mailto:netbac...@whelan-consulting.co.uk http://www.linkedin.com/in/patrickjosephwhelan ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu 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. -o- Astrium Limited, Registered in England and Wales No. 2449259 Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, EnglandATT468691.gifATT468692.jpg___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Multiplexing on destaging basic disk dssu
On Tue, Mar 1, 2011 at 5:41 AM, Patrick netbac...@whelan-consulting.co.ukwrote: Is there a way to do the above? If so how? Short answer: no. Longer answer: It's been requested multiple times and is being considered for a future release. There are ways to configure yourself around these limitations by configuring more storage units and reducing the maximum size of a destage run to force it to kick off more jobs. Then you'll run into issues on saturating your disk subsystem... With an LTO-4 taking up to 400MB/sec of well-compressable data, how many of those streams can your disks take? .../Ed image001.gif___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Multiplexing on destaging basic disk dssu (FINAL)
Hi All, I guess I will have to live with it. At the moment the destaging kicks off about 40 jobs writing to two LTO5 drives. I was just hoping to make it faster, but maybe it's alright the way it is. Oh, well. Thank all of you for your answers and inspirations. Regards, Patrick Whelan VERITAS Certified NetBackup Support Engineer for UNIX. VERITAS Certified NetBackup Support Engineer for Windows. netbac...@whelan-consulting.co.uk http://www.linkedin.com/in/patrickjosephwhelan Description: cid:image001.gif@01C99E80.E2717A60 From: Ed Wilts [mailto:ewi...@ewilts.org] Sent: 01 March 2011 18:27 To: Patrick Cc: veritas-bu@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Multiplexing on destaging basic disk dssu On Tue, Mar 1, 2011 at 5:41 AM, Patrick netbac...@whelan-consulting.co.uk wrote: Is there a way to do the above? If so how? Short answer: no. Longer answer: It's been requested multiple times and is being considered for a future release. There are ways to configure yourself around these limitations by configuring more storage units and reducing the maximum size of a destage run to force it to kick off more jobs. Then you'll run into issues on saturating your disk subsystem... With an LTO-4 taking up to 400MB/sec of well-compressable data, how many of those streams can your disks take? .../Ed image004.gifimage001.jpg___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
