Correct partition sizes for physical servers running Windows Server 2012 Standard Hyper-v
Posted on 2013-06-17
Just taken delivery of two Dell T420s, running Windows 2012 standard with Hyper-v enabled, to act as hosts for a total of 4 VMs.
The first server (PS1) has an 837Gb RAID 1 array (intended for the Windows 2012 Hypervisor and the VM files) and a second RAID 5 (for the data VHDs)
The second server (PS2) also has an 837Gb RAID 1 array, but this time with a second RAID10 array (for a SQL server VHD).
There are two issues:-
1) On both servers, the RAID1 array is partitioned into 1x 40 Gb C drive and one 794Gb partition.
However, already the C drive, only has 6Gb free !
Part of the reason for this is that it includes a 10Gb sample VHD that I can easily relocate to another partition or drive.
That would leave the C drive with about 16Gb free at present (40%), but over the life of the server (est 5 years) am I going to run into the age-old problem with default Microsoft partition sizes of running out of disk space ?
If I am, now is the time to delete the other partition on the RAID1 array and re-size - but in which case, what are the recommendations ?
One single 837Gb drive, a 200Gb C drive partition etc?
2) The RAID10 data array on PS2 is partitioned as a single 2,234GB partitition, but the RAID-5 data array on PS1 is split into 3x 1,843Gb partitions and one 1,173 Gb partition.
Ideally, I would like to use the RAID-5 array as a single 5.6Tb partition, as it will all be used by a single VM file server, to store the company's general files (Word, Excel, PDF etc)
I recognise that NTFS has a 2Tb limit. I am also aware that a bigger partition would mean, for example, that chkdsk would take longer to run, but 1,843Gb partitions would force me to create "arbitary" divisions in my data, which do not actually match the needs of my business.
Over the life of the server, this might mean that one partition becomes full, whilst another is,say, still 75% empty...
As such, the desire is for fewer, but bigger partitions if at all possible, but very much open to 'best advice'.
As always, I look forward to any Expert guidance on both of these points.