[Veritas-bu] ESL Poor LAN Performance

Feel like my second home at the mo I have a crazy situation here, so wonder if anyone with HP G3 ESL experience can help. 7.5 environment, separate Media Server that can backup to LTO4 Library and new ESL Library. Problem. Backups over the LAN throughput is really bad going to the LTO5 Lib

Re: [Veritas-bu] ESL Poor LAN Performance

You've lost me. What do you mean by over the LAN? What is difference between the two policies? Many regards, Pat Whelan Principal Remote Product Specialist - NBU Business Critical Services Symantec Corporation www.symantec.com Mobile: +44(0) 771 492 3085 (Preferred) O

Re: [Veritas-bu] ESL Poor LAN Performance

I assume he means a normal backup over the network, versus a FT or SAN Media Server backup. I would suggest looking at the drive it was using and seeing if there is something wrong there. Maybe shut that one down to see if it has an issue. On Tue, Nov 19, 2013 at 8:00 AM, Patrick Whelan wrote:

Re: [Veritas-bu] ESL Poor LAN Performance

I am referring to doing a backup over the Local Area Network to either the LTO4 or LTO5 drive via a Media Server. The only thing SAN Attached is the Media Server to the LTO4 and LTO5 library. One client is in the same room as the Media Server and backups to the LTO5 is bad. Yet going through al

Re: [Veritas-bu] ESL Poor LAN Performance

Hello Simon How is the performance if you run backup of the media server it self to the new library ? Thinking if that is poor the problem is between the media server and ESL library Anything to see on SAN switch ? If both LTO4 and LTO5 is connected trough the same HBAs, you can have situatio

Re: [Veritas-bu] ESL Poor LAN Performance

Simon, What is the os on the media server. Are both the lto4 and the lto5 using the same drivers. The same hba's. If the same make and model are the configs the same. Can you mount a tape on the device and write on the tape using dd to see how the drive preforms without netbackup in the middl

Re: [Veritas-bu] ESL Poor LAN Performance

I think it's pretty clear that it is something with your LTO5 library. Switch/fibre cables, drive, etc? On Tue, Nov 19, 2013 at 9:06 AM, Simon Weaver wrote: > I am referring to doing a backup over the Local Area Network to either > the LTO4 or LTO5 drive via a Media Server. > > The only thing

Re: [Veritas-bu] ESL Poor LAN Performance

> To give you an idea, 20 hours to backup 100GB. > > I cancel the job, revert backup policy to the LTO4 library, same media server > and backups of the same capacity done in 2 hours. Someone check my math, but 100gb in 2 hours, 50gb/hour, 853mb/hour, or 14mb/sec. I wonder if the LTO4 is able to s

Re: [Veritas-bu] ESL Poor LAN Performance

The Data is millions upon millions on 2-5kb files. So from a Network point, it is just about acceptable. It would be a SAN Media Server or Client if they paid for it! The estimate I gave, wasn't even close to the overall capacity. It is a 1GB Network. But the environment is running flat-out 24 x 7

Re: [Veritas-bu] ESL Poor LAN Performance

Hi Len Win2k8 R2 - If it backs up itself, it's very fast, so that is fine. Certainly from a SAN point, everything is fine. I am going to present the LTO5 Library to another SAN Media Server and run more tests to get an idea of throughput. S. From: veritas-bu-boun...@mailman.eng.auburn.edu [mai

Re: [Veritas-bu] ESL Poor LAN Performance

There are other devices on the SAN Switch, but our SAN Admin see no high usage or no excessive dropouts or issues when doing backups to the media server itself. The Library is in a different location as well – So it has 2 hops to go through via the SAN, but as I mention, from the Media Server i

[Veritas-bu] ESL Poor LAN Performance

With a 10x performance difference between backing up to the LTO4 drives and the LTO5 drives, I'd suggest checking the fibre path from the server to the tape drive in the LTO4 library and comparing it to the LTO5 library. You might want to check port errors at the switch. I have my doubts this i

[Veritas-bu] Incremental filesystem backups running like a full backup

I am attempting to backup the contents of a remotely mounted filesystem. This filesystem is currently mounted on one of our linux master servers via CIFS. There is approximately 2.3TB's of data on this system. I can backup in full with no issues but every incremental I run, runs like another ful

Re: [Veritas-bu] Incremental filesystem backups running like a full backup

Try this: USE_CTIME_FOR_INCREMENTALS bp.conf entry for UNIX clients The USE_CTIME_FOR_INCREMENTALS entry changes how NetBackup determines whether or not a file has changed. This entry causes the client software to use both modification time and inode change time during incremental backups to dete

[Veritas-bu] Incremental filesystem backups running like a full backup

Thanks Pat, I will look at this a little more but it seems like this may be the answer. I have one more question based on this information. As this remote share is mounted on a linux server which is also our master server (in our dev environment) will I see any impact on normal operations aft

Re: [Veritas-bu] Incremental filesystem backups running like a full backup

I think mounting it on a media server would be a better option. Try to keep as much off the master server as possible. -- Original Message -- From: "mdglazerman" To: VERITAS-BU@MAILMAN.ENG.AUBURN.EDU Sent: 19/11/2013 21:16:33 Subject: [Veritas-bu] Incremental filesystem backups running