bobbysocall Absent Member.
Absent Member.
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Backup slowness: Data Protector 7.0 and NW 6.5

Recently upgraded HP Data Protector 6.21 to 7.0. Cell Manager is a HPUX 11.31 system. Destination is a MSL4048 LTO-6 on a SAN. Backup times have increased 3x since upgrading.
Inquiries suggested downgrading from TSAFS to TSA600. This did not help. Hyperthreading is not active.

Help, help, help!!! Thanks
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Knowledge Partner
Knowledge Partner

Re: Backup slowness: Data Protector 7.0 and NW 6.5

Bobbysocall wrote:
> Backup times
> have increased 3x since upgrading.


With no changes on the NW side? If so you need to ask HP.

--
Anders



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bobbysocall Absent Member.
Absent Member.

Re: Backup slowness: Data Protector 7.0 and NW 6.5

Hi Anders,

HP tech support sees it as a NetWare issue. Backup speeds with other OS are fine. Are there any things to look for or try that may affect throughput? Thanks


AndersG;2282649 wrote:
Bobbysocall wrote:
> Backup times
> have increased 3x since upgrading.


With no changes on the NW side? If so you need to ask HP.

--
Anders
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Knowledge Partner
Knowledge Partner

Re: Backup slowness: Data Protector 7.0 and NW 6.5

Bobbysocall,
> HP tech support sees it as a NetWare issue. Backup speeds with other OS
> are fine. Are there any things to look for or try that may affect
> throughput? Thanks


Of course they would, but that would not explain why it used to be fast
with the previous version... CAn you use TSATEST and check what raw speeds
you see there?

--
Anders Gustafsson (NKP)
The Aaland Islands (N60 E20)

Have an idea for a product enhancement? Please visit:
http://www.novell.com/rms

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bobbysocall Absent Member.
Absent Member.

Re: Backup slowness: Data Protector 7.0 and NW 6.5

AndersG;2282873 wrote:
Bobbysocall,
> HP tech support sees it as a NetWare issue. Backup speeds with other OS
> are fine. Are there any things to look for or try that may affect
> throughput? Thanks


Of course they would, but that would not explain why it used to be fast
with the previous version... CAn you use TSATEST and check what raw speeds
you see there?

--
Anders Gustafsson (NKP)
The Aaland Islands (N60 E20)

Have an idea for a product enhancement? Please visit:
http://www.novell.com/rms


Thank you for the help. I have narrowed down the issue to our StoreOnce 4420 D2D system. The ingest rate for NetWare is just aweful. Writing 8.5GB to a MSL4048 LTO-6 on a SAN vs writing to a StoreOnce 4420 on LACP bonded 10Gbe using server-side deduplication to a catalyst share produces the following results:

Writing to LTO:
Run Time ........... 0:06:59
Backup Speed ....... 20.43 MB/s

Writing to D2D:
Run Time ........... 2:26:18
Backup Speed ....... 0.98 MB/s

I do not see this type of performance degradation from any other OS, but it consistent across all of the NetWare systems.

Any clues? Thanks again.
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Knowledge Partner
Knowledge Partner

Re: Backup slowness: Data Protector 7.0 and NW 6.5

And what are the raw speeds as reported by TSAFS?

--
Anders Gustafsson (NKP)
The Aaland Islands (N60 E20)

Have an idea for a product enhancement? Please visit:
http://www.novell.com/rms

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Absent Member.. Jim_Lawson Absent Member..
Absent Member..

Re: Backup slowness: Data Protector 7.0 and NW 6.5

I know this is an old thread, but I thought I'd point out that most deduplicating backup appliances perform horribly when backing up compressed or encrypted data.
Setting the Data Protector option to uncompress the netware files before sending them to the backup device (tape or appliance) will improve performance dramatically.
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bobbysocall Absent Member.
Absent Member.

Re: Backup slowness: Data Protector 7.0 and NW 6.5

Just a follow-up on this issue....

We have since upgraded to Data Protector 9.01. This has eliminated the slowness issue with the NetWare backups to the StoreOnce device. The disk and media agents on the NetWare clients did not have to be upgraded to see the speed improvement.

Solution: Upgrade Cell to Data Protector 9.01

Thanks again for all of the help.
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