Teachers storage space - how much is enough?!
This morning i have had a member of SLT in asking about file space and who has what allocation.
Reason he was asking is because i impose a quota of 15GB on all staff - with the exception of less than 10 staff that were already over the 15GB limit when i applied it over Christmas.
The staff file server is 2008 R2 sitting on VMware. The virtual machine (VM) resides on a 2TB LUN which is physically part of our SAN. An IBM DS3400, the 2TB LUN is the maximum it can be with current limitations of LUN sizing and VMware vSphere 4.
The fileserver currently has 1.6TB allocated to the machine - leaving 400GB free on the LUN for snapshots and a little room for growth. I am reluctant to eat into the 400GB too much for when we snapshot the machine or when we run VCB backup jobs which require some of the 400GB for these operations. We donít want a case where the VM hangs because the physical LUN runs out of space - which has happened to me before when we increased the size of a VM without thinking about what space is needed etc. for snapshots and VCB jobs.
So the staff file server has 1.6tb drive inside and of that i have 400gb free space. With 200 permanent members of staff and numerous student teachers i donít have enough space if everyone was to use their 15gb quota as it is.
However the member of SLT was asking why heads of faculty and special skills teachersí couldnít have 2-3 times that amount whilst we limit new teachers to 5gb for example.
Am i being unreasonable when i said i donít have time to go through manage all the quotas and i also explained that some HoF and SKT have some of the smallest usage when other members of staff seem to have copied the contents of subject drives into their own H: drives! FFS!
I think 15GB is more than enough - oh yes, all teachers also have offline files enabled on their laptops (imagine the fun there when they have 35GB!!! in their h: drive), especially when they have access to the additional:
ē Department drives which is 700GB of which 200GB free.
ē Year Drives which is 160Gb of which 65GB free
ē Admin drive which is 700gb shared with department drives with 200GB free.
Please tell me if i am being unreasonable as SLT donít consider the affect it will have on backups and infrastructure. They think because they can buy another hard drive in Currys for £80 that itís as simple here.
My only other option i can see at the moment is to create a second staff file server and split the home directories between the two. Thatís a short term fix as that then leaves me the problem of backing it all up. I would have to increase capacity on our DPM and VEEAM server as well as run the Backup Exec job to tape all weekend and into Monday day - as this currently takes anywhere up to 30 hours as it is.
How do other people manage their staff file usage and do you impose a quota?