[Veritas-bu] Mount Points and Jobs
When backing up Unix servers, allowing multiple data streams will cause Netbackup's stream discovery to create one job for each mounted filesystem. However on Windows, it creates one job for each drive letter, regardless of the number of mounted filesystems beneath each drive letter. We are creating separate filesystems and mount points on Windows precisely because it breaks backups into smaller, more managable jobs. Does anyone know a way to get Netbackup's stream discovery to create one job for each mounted filesystem on Windows? (i.e. more granular than one job per drive letter) If that's not possible, I'm considering ways to do my own stream discovery via scripts and kick off one job per filesystem myself (and turning off the Cross Mount Points option). Anyone have experience with that approach? (I'm already aware of mountvol.) +-- |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] Mount Points and Jobs
We mount our volumes in a single location, so I found that adding a spec like L:\volumes\vol* into the selection list had the desired effect: one job for each mounted volume. Thanks! +-- |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] Re: Tuning Solaris 10 for NetBackup Media Server
Our numbers vary greatly according to the clients. We have very old Solaris machines that backup at 50+ MB/sec. We have very new Windows machines where throughput varies greatly between different volumes on the same machine (e.g. a volume with 5 million tiny files backs up at 30 MB/sec via FlashBackup, while another volume on the same machine gets about 7 MB/sec backing up small files via FlashBackup). It's difficult to get good numbers because we use multi-streaming and multiplexing like crazy. So the actual throughput to the drive is the sum of the jobs using the drive at that moment. Individual jobs vary between 5 MB/sec and about 65 MB/sec. But the total throughput to the tape heads is unknown. Anyone know an easy way to calculate that? +-- |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] Re: Tuning Solaris 10 for NetBackup Media Server
I spoke with our Network guys and got the following: 1. the IOS version is 12.2, revision 18, sfx 7 native 2. there is no minimum hardware version 3. we are running on a Catalyst WS-X6748-GE-TX 4. they configured LCP ports in active mode Being a Unix guy and knowing virtually nothing about Cisco gear, I haven't the foggiest idea what any of that means. But that's the best I can relate their info. Paul Keating wrote: Is anything particular required on the Switch? Minimum IOS version? Minimum hardware version? Paul -- -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of sauderd Sent: May 8, 2007 11:27 AM To: VERITAS-BU@mailman.eng.auburn.edu Subject: [Veritas-bu] Re: Tuning Solaris 10 for NetBackup Media Server It was driver code to get the dladm command to work properly with the Cisco switch. La version française suit le texte anglais. This email may contain privileged and/or confidential information, and the Bank of Canada does not waive any related rights. Any distribution, use, or copying of this email or the information it contains by other than the intended recipient is unauthorized. If you received this email in error please delete it immediately from your system and notify the sender promptly by email that you have done so. Le présent courriel peut contenir de l'information privilégiée ou confidentielle. La Banque du Canada ne renonce pas aux droits qui s'y rapportent. Toute diffusion, utilisation ou copie de ce courriel ou des renseignements qu'il contient par une personne autre que le ou les destinataires désignés est interdite. Si vous recevez ce courriel par erreur, veuillez le supprimer immédiatement et envoyer sans délai à l'expéditeur un message électronique pour l'aviser que vous avez éliminé de votre ordinateur toute copie du courriel reçu. ___ 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
[Veritas-bu] Re: Tuning Solaris 10 for NetBackup Media Server
I spoke with the network guys in our shop and I got the following: 1. the IOS version is: 12.2, rev. 18 sfx 7 native 2. there is no minumum HW version 3. the hardware we're using is a Catalyst WS-X6748-GE-TX 4. they configured the ports as LCP in active mode Being a Unix guys, I haven't the foggiest idea what that means. But that's the best I can relate their info. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
[Veritas-bu] Re: Tuning Solaris 10 for NetBackup Media Server
Oh, I almost forgot to mention something. We got a specially created fix from Sun to get the Solaris 10 part to work. A publicly available patch will forthcoming soon. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
[Veritas-bu] Re: Tuning Solaris 10 for NetBackup Media Server
It was driver code to get the dladm command to work properly with the Cisco switch. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
[Veritas-bu] Re: Tuning Solaris 10 for NetBackup Media Server
The four onboard NICs as well as an extra 2-port NIC we installed are all GLDv3 devices. So, they take advantage of the new dladm command to do link aggregation. We had the networking guys configure the 6 ports on the Cisco switch (LACP protocol) and then we did the aggregation as follows: dladm create-aggr -P L2 -l active -d e1000g0 -d e1000g1 -d e1000g2 -d e1000g3 -d e1000g4 -d e1000g5 18 ifconfig aggr18 plumb nvsun14 up One would only use Sun trunking if the NICs or software could not take advantage of the new GLDv3 stack. In particular, we found that the ce (Cassini NIC) devices will never take advantage to of the dladm aggregation. Their performance is also much poorer because they bury the CPU. So stay away from them. But dladm rocks! ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
[Veritas-bu] Re: Tuning Solaris 10 for NetBackup Media Server
Before we put our T2000's into service as Netbackup master servers, I benchmarked their network throughput using ttcp and it was amazing. We pushed 5 simultaneous ttcp streams into the T2000 for a cumulative throughput of 495 MB/sec (that's megabytes). All of this was without it breaking a sweat on the CPU--quite low utilization. Take careful note that we were using the 6/06 version of Solaris 10; it takes advantage of the GLDv3 rewrite of the Solaris 10 networking stack, including network link aggregation. We put it into service as a Netbackup master server and we aggregated 6 incoming GigE links. Like the post above, I used 256K as the buffer size (recommended by the the LTO3 drive manufacturer, HP). I used empirical methods to find the miniumal number of buffers that still provided benefit. I doubled the number of buffers, tested, doubled, tested, etc. I found that 128 buffer provide a slight increase in speed vs. 64 buffers. But beyond 128 there was no gain. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
