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Jul
8
comment Increasing swap on RAM-limited VPS used for calculations
What's the impact of performance drop on your business?
Jul
8
comment How to get the serial console logs via ethernet port?
Can't you just syslog it?
Jul
8
answered Providing shared file level storage from a SAN
Jul
3
comment Why is my VM disc file more than 2x bigger then the actual FS?
How much memory is assigned to the VM?
Jul
3
comment Can you list a Datastore Cluster's sDRS Schedule via PowerCLI?
Thank you very much indeed, I'd not been in a position to test it until now but that's perfect - I'd gotten myself so tied up wondering why it wasn't a function of sDRS that I'd blinded myself to the fact it was setup as a normal scheduled task - thanks again.
Jul
3
accepted Can you list a Datastore Cluster's sDRS Schedule via PowerCLI?
Jul
2
asked Can you list a Datastore Cluster's sDRS Schedule via PowerCLI?
Jul
2
comment ESXI 5.1 not balancing CPU load across all cores/threads
They are great yes, it's hyperthreading that we as sysadmins dislike as some people think of them as extra CPUs, they're really not and you'd be surprised how few applications really make use of them well.
Jul
2
comment ESXI 5.1 not balancing CPU load across all cores/threads
@MMike1986 no, they all have to work the same because of the architecture of servers vs. hypervisors.
Jul
2
comment ESXI 5.1 not balancing CPU load across all cores/threads
@MMike1986 I think the issue here is that you don't HAVE 24 vCPUs - you have 12 that happen to be HT'ed - yes ESXi kinda-sorta sees them as CPUs but they're not full CPUs and it will treat them that way, i.e. they'll tie up main-CPU resources and be halted often. Basically no hypervisor will be tuned to behave as efficiently when dealing with HT as a bare-metal OS can be as they're designed to handle lots of smaller VMs rather than one big VM per host - also bear in mind that the actual hypervisor takes up a bit of CPU and memory too so you've not got all of the system to your VM anyway.
Jul
1
comment Multiple vCenter Services for redundancy
Presumably you're not trained and haven't read the documentation? If you're talking version 5 then there's the 'Heartbeat' and for v6 you can have multiple PSC's and vCenters.
Jul
1
comment Datastores Occasionally Disappear on vSphere Client
"I meant that the virtual server running vCenter is Red Hat" - what? that makes no sense at all - or do you mean you're running an RHEL physical with something like VMWare Workstation and then the vCenter on that in either Windows or VCSA?
Jun
29
comment Powercli Script to measure the count of Host and its Vm's in a each clusters
Do you NEED to do this via PowerCLI? it's all there in vCenter
Jun
28
comment Physical stats of cable modems
Look at en.wikipedia.org/wiki/TR-069
Jun
24
comment Strategy for migrating older files
Looked at ZFS for this?
Jun
24
comment HP DL180 G6 - SD Card slot
If you can take the hosts out for long enough I'd shut it down, run an SPP on it to update all the various firmware, delete the boot virtual disk in disk controller and recreate a new R1 mirror with the boot disks, run diags on them to see if they're fine, if they are reinstall ESXi onto them and reconfigure as needed - and see how you get on. I'm assuming you have a second host on the same P2000? if so then do the same on that once the first one is back. Oh and check that the firmware is up to date on the P2000 and it's disks too of course.
Jun
24
comment HP DL180 G6 - SD Card slot
I do so hate shared-bus-SAS for VMWare - I know it 'works' and is on the HCL but FC/FCoE/iSCSI/NFS seems so much more reliable.
Jun
24
answered HP DL180 G6 - SD Card slot
Jun
23
comment How to mount host's VMFS datastore from a guest?
this site is for professional sysadmins who inherently try to use supported configurations, this isn't one.
Jun
23
comment Windows Server 2008 RAID setup
Yep, R1/10 and 6/60 are the only games in town (unless you have a genuine reason for R0 of course, but they're rare).