My little cloud in the virtual world of virtualisation – mainly VMWare and EMC SAN (CX, NS and VNX)
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Tag: SAN

Useful Celerra / VNX File Commands | The SAN Guy

15 August, 2013

Useful command line reference for the EMC File part of the VNX and NS arrays.

Useful Celerra / VNX File Commands | The SAN Guy.

VMware KB: ESXi/ESX hosts with visibility to RDM LUNs being used by MSCS nodes with RDMs may take a long time to boot or during LUN rescan

29 July, 2013

This was a great find – fixed the 45 minute boot time due to the large number of RDMs in use:

VMware KB: ESXi/ESX hosts with visibility to RDM LUNs being used by MSCS nodes with RDMs may take a long time to boot or during LUN rescan.

EMC Community Network – ECN: Need to know the difference between storage pool and RAID group?

11 June, 2013

Need to know the difference between storage pool and RAID group?

via EMC Community Network – ECN: Need to know the difference between storage pool and RAID group?.

A great reply to a posted question – all show in a easy to read table.

VMware KB: Unmounting a LUN or Detaching a Datastore/Storage Device from multiple ESXi 5.x hosts

29 May, 2013

VMware KB: Unmounting a LUN or Detaching a Datastore/Storage Device from multiple ESXi 5.x hosts.

Online IOPS Calculator (wmarow.com)

25 April, 2013

A Excellent and hand IOPS calculator over on the site wmarow.com.

It has a number of pre-defined drive type, but you can add your own drives specifications.

wmarows iops calculator.

Adaptive Queueing vs. Storage I/O Control |

23 January, 2013

An excellent and well explained guide for VMWare IO storage control  Рhow queue depth and queue full conditions are handled.

Adaptive Queueing vs. Storage I/O Control |.