eva 6400 adding disk capacity on a windows 2008 host

[martymcfly1955]

I have an eva 6400 with about 10 300gb disks in a disk group presented to a windows 2008 server as one vdisk (vraid5). I've partitioned it into two drives on the windows server (d: and e:). We'd like to add another 300gb drive and make it available to one of the partitions. We've already added the drive to the group. What I'm fuzzy on is can that drive be made available to the original vdisk by just upping the requested capacity on that vdisk by 300gb? And if that's possible, will it just show as unused space on the windows side?

[Torsten.]

All disks in a diskgroup are available as a "pool of space", you cannot create space on certain disks, but only within a diskgroup. So yes, you can just increase the vdisk space, but you need to tell windows to recognize the new space.

Why present 1 vdisk and then make partitions, does it make really sense?

[Steven Clementi]

"And if that's possible, will it just show as unused space on the windows side? "


Once you set the requested capacity on the vdisk and it completes... your Windows host will see...

---------------------------------------------
D:____|E:____|Unallocated Space
---------------------------------------------

You can then use diskpart to extend either partition.

diskpart
select disk x (where x is the logical disk number that windows see's the disk at)
select partition x (where x is the partition you want to extend)
extend

If you need to find out which disks or partitions there are...

list disk (to see the disks)

after tou "select" a disk, you can ...

list partition (to see a listing of partitions on the selected disk)


Steven

[martymcfly1955]

I figured this was this case but there was this big blaring message from eva commander about a "profound" impact on the host operating system the spooked me :) Expansion went off without a hitch.

[martymcfly1955]

Torsten ..... kind of curious as to what doesn't make sense? I did change it to 2 vdisks to that e: was presented as a separate vdisk. But only because e: was holding the shadow volume and the white papers say that should be on its volume. Am I gaining anything by breaking it up more?