what is a LUN?
does it mean of a logical volume that use for vm to extract from a Lun?(datastore)?
View Articlewhat is the con for thin provisioning for storage?
from what i know is1.) if storage is fail, really failure because it cannot support fault tolenance.what else part as above 1.)
View ArticleVMFS 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 ArticleConfigure shared disks on 2 VMs hosted on 2 seperate ESXI hosts
Hi all, I am having this issue now and want to check if anyone encounter this issue. I have 2 VMs running on Guest OS Win 2012 R2 Std on 2 seperate ESXI hosts 5.5 Update 1. I created a RDM and add this...
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 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 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 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 Article2 servers that frequently communicate with each other - storage question
Hello All! Just wondering what the opinion is here, we have 2 SQL servers that communicate frequently with each other that at times have problems. They are on the same SAN but are on different LUNs....
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 ArticleEMC-DELL AX100i on ESX 5.x: Does anybody check?
Hi all. Does anybody check AX100i EMC-DELL storage cabinet with ESX 5.x?I just have the oportunity for installing one from a gift (is older model, I know, and only supported by ESX 3.x) Thanks
View ArticleHP MSA 2040 multipathing
Hello everyone, Recently we have purchased HP MSA 2040 FC SAN. SAN came with dual controllers. each controller has 4 ports. we have configured it with 2 LUNs. currently we connected all controller...
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VSAN: cannot add storage policy, VSAN option missing under "rule based on...
Hey, I have a problem with the final version of VSAN. I have upgraded all my hosts to 5.5 Update 1 and I have configured the VSAN cluster successfully.Unfortunately, when I try to add a storage policy,...
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ESXi booting on SSD, do i need to worry about swap space location?
Hi, I have received a new PowerEdge R520 server with 2 SSD cards where ESXi is preinstalled.I have configured the host and created one big 7TB Datastore from the local HDD (RAID6). For now this host...
View ArticleSharing a vmdk
Hello,I'm relatively new to vmware, so I'm hoping someone can point me in the right direction with regards to sharing a virtual disk between 2 x Windows 2008R2 servers. Apologies if the information I...
View Articleunmounting datastore fails
I'm unable to unmount the datastore . The datastore is clean and no VMs are in it. While unmounting the datastore it doesnt pass the check "No virtual machine resides on the datastore"When I tried to...
View Articlewhat is the mean of Full vmdk and instant vmdk restore?
full vmdk allow to restore entire data and the data will not be lost?and instant vmdk only available in period, when you restart vm, the vmdk will be lost? correct as above?
View ArticleHow to use SMotion to move a VM on two datastores
Hello, I have a VM that has two VD's (VD1 & VD2) and they are on different datastores (DS1 & DS2). The OS is on VD1 and VD1 in on DS1. The data is on VD2 and VD2 is on DS2.Is it possable to...
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