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September 26th, 2014 10:00
vdev sizing
I haven't been able to find an answer to this.
I need to create vdev devices and pair them with R2 devices. The R2 devices are tdev meta's. In creating the vdev devices, do they have to be the same size/geometry as the R2 tdev device(s)?
Ie: if the R2 is 960GB (4*240GB), do I create 4 vdev devices at 240GB and create a meta from them and then use that meta vdev to pair to the R2?
Thanks.
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dynamox
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September 26th, 2014 11:00
that is correct, VDEVs must be build identically to source devices.
dynamox
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September 26th, 2014 11:00
Jim,
if you are on the latest symcli use this command to build new VDEVs
symconfigure -sid 123 -cmd "configure 6 devices copying dev 188A overriding CONFIG=VDEV;" commit
this will build 6 VDEVs that will match 188A configuration (striped meta, meta member size ..etc)
JimK513
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September 26th, 2014 11:00
we're on 76 code and se76. thanks. I'll give that a try.
JimK513
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September 26th, 2014 11:00
it failed on the VDEV config, apparently.
>symconfigure -sid 96 -cmd "configure 2 devices copying dev 0315 overriding CONFIG=VDEV;" preview -nop
A Configuration Change operation is in progress. Please wait...
Establishing a configuration change session...............Established.
Processing symmetrix 000192606096
Performing Access checks..................................Allowed.
Checking Device Reservations..............................Allowed.
Validating configuration changes..........................Failed.
Error occurred while Validating
Cannot use the device for this function because it is a Virtual Device
Closing configuration change request......................Closed.
Terminating the configuration change session..............Done.
The configuration change session has failed.
JimK513
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September 26th, 2014 11:00
Thanks Dynamox.
I figured as much but it would save me time if i could use a std size., so I asked.
You rock!
dynamox
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September 26th, 2014 12:00
what kind of device is 0315 ?
JimK513
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September 26th, 2014 12:00
0315 is a concatenated tdev R2.
dynamox
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September 26th, 2014 12:00
ahh..bummer. Do you have a non-rdf device of the same construct ?
dynamox
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September 26th, 2014 12:00
yep, if you were building hundreds of VDEVs that would make sense.
JimK513
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September 26th, 2014 12:00
all our devices are created with the dyn_rdf attribute set.
Oh well. Thanks, that is still a great cli feature add to know. I could work around it by creating a 'dummy' meta to use as the copy device, though.