A general system error occurred: Source detected that destination failed to resume

If you Fiber Channel storage is slow you may experience the following error while performing live disk vMotion migration from one LUN to another:

A general system error occurred: Source detected that destination failed to resume

Default values for disk settings in Vmware Vsphere ESXi server console are:

disk.delayonbusy 400
disk.resetlatency 1000
disk.maxresetlatency 2000

You may want to increase these values to:

disk.delayonbusy 1000
disk.resetlatency 2000
disk.maxresetlatency 4000

And perform a LIVE disk migration from one LUN to another and see if you are experiencing timeouts…


Comments

  1. Glenn Barnas says:

    We have been suffering from this issue on one host in our farm on-and-off ever since migrating from ESX 4.0 to ESXi 4.1 a few months ago. We never had the problem with ESX. All of the hundreds of other KBs, notes, and blogs talk about the NFS name issue. This was the first time anyone spoke to FC SAN performance and offered appropriate advice – that worked!

    Thanks!

    Glenn

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