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Type: Posts; User: Tim Boothby

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  1. LSI Have released a new firmware 23.18.0.0014 (MR...

    LSI Have released a new firmware 23.18.0.0014 (MR 5.8 P1) Nov 26, 2013 and the release notes include the following fixes:-

    SCGCQ00525647 (DFCT) - Cachecade 2.0 with MR 5.7 fw peformance is much...
  2. Thanks for the update Todd. My conversation...

    Thanks for the update Todd.

    My conversation with LSI ended when they told me I should replace my SSDs with ones on their approved hardware list. Frankly I've not found their first line support...
  3. Hi Todd, I can reproduce this. Roll back to...

    Hi Todd,

    I can reproduce this. Roll back to the 23.12.0.0013 firmware and all is ok. If I move to the 23.16.0-0018 firmware the corruption starts happening again.

    If there is anything I can do...
  4. I've also had problems

    Hi Henri,

    I've also had massive problems with data-corruption on a production system. My setup is two DSS 7 boxes as an ISCSI SAN in an active/active fail-over / replication cluster. I think I've...
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    Ok - I'm interested to hear that. That's exactly...

    Ok - I'm interested to hear that. That's exactly the setup I have, 2 x DSS boxes as ISCSI backend for Hyper-V CSVs, cluster of 4 Hyper-V hosts, 2 switches, MPIO. Whenever I did a failover on the DSS...
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    Hi Darko, Are you saying that you could...

    Hi Darko,

    Are you saying that you could failover an ISCSI volume hosting a Hyper-V CSV from one DSS v6 box to another without problems? My experience is that this caused blue screens with v6, so...
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    I've been running some tests with Server 2012 RTM...

    I've been running some tests with Server 2012 RTM Hyper-V and DSS7. Unfortunately whatever the alleged improvements for failover tolerance in Windows are, I'm still seeing blue screens on the guests...
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    So it sounds like DSS doesn't use system RAM for...

    So it sounds like DSS doesn't use system RAM for read caching in the way that ZFS does for example. The problem with depending on RAID controller cache is these are usually quite small, 1GB or less...
  9. Well great news that this is on the agenda. It's...

    Well great news that this is on the agenda. It's a critical bit of missing functionality and a shortcoming I didn't see mentioned anywhere in the sales material.

    Olias - I have a setup much as you...
  10. ISCSI failover support for Hyper-V Cluster?

    Hi,

    Currently a failover of an ISCSI volume hosting a Hyper-V Cluster Shared Volume will tend to cause the host VMs to blue-screen. This apparently is due to the ISCSI-3 persistent reservation...
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    The ping nodes are the four Windows servers.

    The ping nodes are the four Windows servers.
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    Failover: Ping node x.x.x.x is down

    Hi,

    I have 2 DSS v6 boxes set up with failover between them providing ISCSI storage to a Hyper-V cluster. There are 4 host servers in the Hyper-V cluster and I've used all four of these as the...
  13. Yes, I have that message too. I think it's...

    Yes, I have that message too. I think it's spurious and safe to ignore.

    Tim
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