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тАО01-22-2008 07:04 PM
тАО01-22-2008 07:04 PM
EVA 6000 XCS 6110 Performance Issues
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тАО01-23-2008 12:36 AM
тАО01-23-2008 12:36 AM
Re: EVA 6000 XCS 6110 Performance Issues
Are all of the other servers running the same software and drivers ?
Due to the number of changes you've made, it's difficult to see how you've come to the conclusion that its the XCS code that's at fault...
Cheers,
Rob
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тАО01-23-2008 06:05 AM
тАО01-23-2008 06:05 AM
Re: EVA 6000 XCS 6110 Performance Issues
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тАО01-24-2008 07:09 AM
тАО01-24-2008 07:09 AM
Re: EVA 6000 XCS 6110 Performance Issues
- latest in all does not mean that the specific mix is supported; if possible, validate that what you have is supposed to work with each other.
- Investiate your switch firmware and port settings; we just did an upgrade what we thought was the latest and greatest Cisco firmware a month old, just to see a bugfix release come out a week later. Also, your switch port settings may have changed during your upgrade, depending on how they were saved (or not) prior to that.
- You will probably want to zero any counters you can, and track any errors on any ports, hba's, event logs, etc, that show up as part of your backup.
- Check your MPIO settings - you may be better off turing off any load balancing there, or selecting specific paths to use to isolate a path problem if possible.
- Make sure your lun is using the same level of raid as it was before.
- Lastly, make sure your backup software has no issues doing I/O to the cards or other parts of the I/O setup in question.
Just a few ideas...
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тАО01-28-2008 03:32 PM
тАО01-28-2008 03:32 PM
Re: EVA 6000 XCS 6110 Performance Issues
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тАО02-29-2008 02:56 AM
тАО02-29-2008 02:56 AM
Re: EVA 6000 XCS 6110 Performance Issues
How was your problem solved?
I am now reluctant to upgrade to 6.11
unless the problem can be resolved by a reboot.
thank you for updating
farid
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тАО02-29-2008 05:23 AM
тАО02-29-2008 05:23 AM
Re: EVA 6000 XCS 6110 Performance Issues
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тАО02-29-2008 08:28 AM
тАО02-29-2008 08:28 AM
Re: EVA 6000 XCS 6110 Performance Issues
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тАО02-29-2008 09:43 AM
тАО02-29-2008 09:43 AM
Re: EVA 6000 XCS 6110 Performance Issues
A resync should not in theory, cause anything user visible to happen. The paths should failover and fail back in like 45 seconds. And in practice mostly this has worked for us with Openvms and even aix (can't say for MS) , but I think we have had a few problems. Of course there is the 45 second hang that users experience. Then, like you say, some databases can freak out over 45 seconds of no I/O. It's amazing in this day and age that these expensive, supposedly 'enterprise-ready' products to which we entrust our data are, in fact, quite fragile.
Someone will probably chime in, "well you have to set resync_flap_avoidance_datacheck_mutex to 50 and reboot", but come-on , I feel this stuff should have better recovery out of the box.
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тАО02-29-2008 10:46 AM
тАО02-29-2008 10:46 AM
Re: EVA 6000 XCS 6110 Performance Issues
As far as HPs fixes it is supposed to come out mid march version 6.2.2.0. Hopefully it comes out on time.