VMFS 5 compatibility
Hi, I'm trying unsuccessfully to find an up to date VMFS compatibility table, I've looked at the compatibility matrix but can't find anything specific. What I need to confirm is whether VMFS datastores...
View ArticleRDMs and SIOC
I have some pmode RDMS on LUNs where SIOC is enabled.I'm getting this error: "An unmanaged I/O workload is detected on a SIOC-enabled datastore"Is it best practice to disable SIOC on LUNs used as Pmode...
View ArticleStrange Read Latency issue on select VMs, need help with troubleshooting
I have a setup that it is as follows: 4 hosts in a Dell VRTX Chassis with 25 SAS 10k DrivesRunning esxi 5.5U1 1 VMFS5 datastore provided by 24 SAS drives on VRTX. These drives have been configured as a...
View ArticleRe: Configure shared disks on 2 VMs hosted on 2 seperate ESXI hosts
Hi MKGuy, Thanks for your the explanation provided. We have decided to setup the MSCS 2012 R2 for these 2 VMs with the RDM configured as a shared storage to both VMs. Cheers!
View ArticleRe: How to find the iso file mapping
Hi Andre, I heard about this RV tools previously . but i didn' get chance to use those. Now i understood this is a very good tool to get the complete info about the VM's. Thanks for pointing me to the...
View ArticleESXi server is not loading Brocade BFA module when it is rebooted.
Have to manually load module every time once server has rebooted with vmkload_mod bfa Module is showing as enabled on boot: ~ # esxcfg-module -g bfa bfa enabled = 1 options = '' ~ # esxcli system...
View ArticleRe: ESXi server is not loading Brocade BFA module when it is rebooted.
I did the following analysis: I did the following analyis: vmkernel.log============VMB: 212: name: /scsi_bfa.v002014-10-27T15:06:47.646Z cpu0:32768)VisorFSTar: 1960: scsi_bfa.v00 for 0x2a4c9e...
View ArticleRe: Strange Read Latency issue on select VMs, need help with troubleshooting
What sort of configuration and workload do the VMs that experience latency look like?
View ArticleRe: RDMs and SIOC
As per KB 1020651 entitled Unmanaged I/O workload detected on shared datastore running Storage I/O Control (SIOC) for congestion managementRaw Device Mapping (RDM) virtual disks are not supported. This...
View ArticleRe: VMFS 5 compatibility
VMFS5 is supported with vSphere 5.x. KB 2003813's Product Version list and language also supports this.
View ArticleExpanding datastores after reallocated capacity in disk enclosure
Hello, I have question about expanding datastores. We have HP-EVA as hardware and in few weeks ago we bought some additional harddrives. In EVA are 3 virtual disks VIRTU1-3 which are mounted in VMware...
View ArticleRe: Expanding datastores after reallocated capacity in disk enclosure
You can do this online without problem, but VMware recommends do this operation on non-business hours if LUNs experiences high I/O. VMware KB: Growing or expanding a VMFS volume or datastoreNote: If...
View ArticleMoving VM attached to multiple datastores
ESX 5.1. I am moving from one SAN to another. I have a Windows file server VM that is attached to datastore "OS" that is 100 GB (for the OS, program installation, etc.) and datastore "Data" which is...
View ArticleRe: Moving VM attached to multiple datastores
Am I missing something here? Yes, you're missing the "advanced" option in Storage vMotion that will allow you move each .vmdk to an different datastore... to do this, just follow the Storage vMotion...
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Re: Moving VM attached to multiple datastores
Yeah, that's it. I guess that's what I get for trying to work on lack of sleep... Not sure how I missed that... Thanks for the response.
View ArticleMaximum cluster size with 2xHBA (2 paths per HBA)?
Hello I would like to qualify my understand with someone. We are running LUN storage where I work and there are 2 HBAs per host with 2 paths per HBA. As there are 4 active paths to a LUN does this mean...
View ArticleRe: Maximum cluster size with 2xHBA (2 paths per HBA)?
From where do you get the 32 paths to the LUN (maximum supported) ? If it was from vSphere 5.5 Configuration Maximums, this number refer to the maximum number of paths to an LUN per server, not for...
View ArticleUnable to unmount a datastore
FolksI am not able to unmount a datastore. The sanity check of VM presence is failing. I verified there is no VM running in the DS. Initially there were couple of orphaned .vmdk files which I deleted....
View ArticleRe: Unable to unmount a datastore
Take a look at this KB article: VMware KB: Cannot unmount the datastore after migrating the virtual machines
View ArticleRe: Configure shared disks on 2 VMs hosted on 2 seperate ESXI hosts
Hello, I have a similar problem. I shared a virtual disk between two machines Windows server 2012 R2 with the option of "multi-writer", but I have the problem when I save a file from a virtual machine...
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