• Storage & Archiving

  MetaSAN Slowdown after update

  Posted by Allan White on June 26, 2007 at 8:35 pm

  Greetings all, hope you’re well and your SANs are running smoothly.

  After upgrading recently to MetaSAN 2.2.2, I’m having some serious slowdowns when using the filesystem to access files (running OS X 10.4.10 on a G5). The bandwidth tests seem to be normal throughput-wise; but browsing files in the filesystem (Finder, open dialogs, etc.) as well as opening an FCP project from the SAN takes an abnormally long time – much, much longer than before updating. I tried to copy a 1.1 GB folder to the SAN, and it was reporting data rates of around 150K (!) per second – way below earlier performance.

  Any idea why we’d see such a performance slowdown? I checked all the connections (which weren’t disturbed during the update) and the fiber connections look normal. Video does seem to play ok, so far (which I find curious – why the file access slowdown but not throughput?).

  Would the machines have started a Spotlight (mdimport) search after the update, for example? I didn’t see any huge activity.

  Any suggestions? Any other MetaSAN upgrade bugaboos?

  Bernard Lamborelle replied 18 years, 8 months ago 3 Members · 4 Replies
• 4 Replies

• 

  Sean Oneil

  June 26, 2007 at 9:13 pm

  I was told by them not to upgrade to 10.4.10 yet.

  In the meantime, if I were you, try setting your machine to be the metadata master. See if that changes anything.

  I’ve constantly had issues with previous versions of MetaSAN that seem to only affect the non-master members.

  Sean
• 

  Allan White

  June 27, 2007 at 4:27 pm

  Sean, thanks for replying. It would be nice if there was some RSS feed or email list to keep MetaSAN users informed, rather than finding these things out on our own. =)

  I’ll try the master setting – that’s interesting. I have a dedicated Xserve that was going to fulfill that role, because the other machines have a lot going on (high CPU usage, capturing, etc.).

  Any PPC vs. Intel experiences here?
• 

  Sean Oneil

  June 28, 2007 at 12:09 am

  I asked them the same thing. They linked me to the system requirements page on their website. It says Mac OSX 10.4.4-10.4.9 I believe. They will update it once 10.4.10 has finsihed being tested.

  I haven’t found any PPC vs. Intel issues.

  Sean
• 

  Bernard Lamborelle

  September 6, 2007 at 11:14 am

  Thanks for the feedback! We’ve implemented a new RSS feed for support and are now experimenting with it…

  BTW were you able to identify the source of your slowdown? Was it related to Spotlight indexing?

  Cheers,

  Bernard Lamborelle
  Tiger Technology

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