HP RAID5 expansion effect on ESXi 5.1 host datastore expansion options...
I have to use the HP Array Configuration Utility via a bootable USB to be able to expand the array on the built-in HP E200i controller since it won’t work via the boot management interface to add this drive and am not sure how it will ‘Datastore’ reflect…?
Will the existing Datastore dynamically expand or would I have to add the extra drive space as an Extent?
I do not yet have foolproof backups of these VM’s (they’re all utility servers and am in the flow of this deploy…).
Along with the actual VM’s, I do have the ESX OS system logs stored on the Datastore (under a folder called SystemLogs) though and there’s the .locker folder also.
The host ESX OS is installed on internal USB flash so if I didn’t want to go the Extent route and simply wanted to wipe and recreate the Datastore with the expanded space…With all of the VM’s shutdown…
Can I simply browse the datastore and do a native VM folder (all of the files contained) ‘Download’ to a storage location on the server my VMware client is logged in from (which renames the ‘vm’.vmdk to ‘vm’-flat.vmdk) as a simple recoverable backup method!?
I’ve read that the .locker folder that contains the scratch file will just recreate but what do I need to do with the SystemLogs folder? Copy it before shutting down the host or just recreate it when I recreate the datastore so that the ESX OS config will send the logs to it fresh?
I’m actively working on this (download backing up VM’s now in prep for adding the drive) so timely answers would be really appreciated!
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1. You need to add the disk to the array.
2., Expand the array.
3. When finished
4. Expand the logical disk.
5. and then in ESXi, expand or increase the datastore.
Expansion of RAID5 on a Smart Array controller (if possible on your controller!), and you have a BBWC unit to do it as well, can take many hours, or days to complete.
that's RAID Array, and Logical Disk (two separate tasks!).
Disadvantage, performance is poor, when this is going on. You can still use the server, e.g. Hosts and VMs, but you might experience poor unacceptable performance.
(depends on your disks, SATA, SAS, 7k, 10k, or 15k)