Painful data protector performance

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01-17-2008, 06:02 AM

Ulrich Windl

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Painful data protector performance

Hi,

last night, the incremental backup of two HP-UX 11.11 systems took 5 hours 20
minutes to save 5.3GB to File Jukebox (located on an EVA 4000) using Data
Protector 6.0 with recent patches (including the database performance
fix). Most of the files are located on a HP EVA 4000, and _every_ file system
is mirrored (different disk, or different EVA).

One detail: 3862 directories and 139 files making 54MB took over 9 minutes to
save (96kB/s).

Is it the enhanced incremental backup that is to very slow?

Compared to this, a Windows system only took 4 minutes to complete an
incremental backup.

The odd thing is that even though all filesystem are on an EVA, some have good
performance, while others seem to have terrible performance. The machine has
Onnline JFS, so I wonder whether some buffer shortage could be the reason for
the terrible performance.

Normal users of the system did not notice performance problems with the
filesystems so far.

Regards,
Ulrich

« PARISC 1.x Porting Centre Archive? | HPSBUX02285 SSRT071484 rev.1 - HP-UX Running Aries PA Emulator, Local Unauthorized Access »

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Painful data protector performance