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yuv
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should "dead" path recover to "alive" state afer restoring conection b/w esxi and an array ?

Thanks in advance !

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a_p_
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In case of only a link/path loss (i.e. not a complete device loss), the path(s) should be recover instantly after being available again (it may take a few seconds until the GUI is updated though). That's actually required for e.g. switch updates where reboots are required, or for switch replacements ...

A few weeks ago I migrated a vSphere environment with iSCSI storage to new physical switches, by moving the uplinks to the new switches (one-by-one), always ensuring the "lost" paths were available again before migrating the next uplink.

André

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yuv
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additional question - is there a time period - during which transition from "dead" to "alive" is still possible ?

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tomtom901
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It should automatically restore, but a rescan of the storage adapter(s) might help.

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john23
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afalk time period during from dead to alive is not there.

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a_p_
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This may depend on whether all paths to the LUN were lost and/or the LUN was in use when the loss occurred. Take a look at http://kb.vmware.com/kb/2014155 to see whether this applies in your case.

André

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yuv
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I should have added more details initially

1) we are considering the case where only "some" of the paths are lost. after a period of time, the "lost" paths are "restored" (reconnected in hardware)

2) iops were still going through "alive" paths during the disconnection of the "problem paths"

So the questions are -

1) should we expect the esxi to change path state from "dead" to "alive" after the missing/disconnected paths become available again ?

2) is there a time period after which such path state transitioin (from "dead" to "alive") is not possible ?

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a_p_
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In case of only a link/path loss (i.e. not a complete device loss), the path(s) should be recover instantly after being available again (it may take a few seconds until the GUI is updated though). That's actually required for e.g. switch updates where reboots are required, or for switch replacements ...

A few weeks ago I migrated a vSphere environment with iSCSI storage to new physical switches, by moving the uplinks to the new switches (one-by-one), always ensuring the "lost" paths were available again before migrating the next uplink.

André