Re: Normal response times as seen in iometer
recreate the issue and run esxtop and type u to view the naa id device. Check the DAVG and KAVG during that point of time.
View ArticleRe: Array controller failover (Dell md3020i, esxi5) and VAAI
I don't think VAAI is an issue. It might due to overloading on disk due to high IOs , it is moving to other controller. Please update the firmware.. Do you have log snippets pointing to ancient IOs...
View ArticleRe: USB 3.0 External HDD, connecting to ESXI or ESX....copy speed?
weinstein5 wrote: You will not be able to access the USB drive - have you looked at vSPhere Replication - http://www.vmware.com/files/pdf/techpaper/Introduction-to-vSphere-Replication.pdf? Err, why not...
View ArticleRe: Can I assume that flat.vmdks always start at the beginning of a 1 mb block ?
Sorry - please explain what you mean with:No the starting and ending of the vmfs5 is gpt partition table in forward and reverse order.The vmdk flat will be contiguous ... that is not correct....
View ArticleNFS datastores mounting but not readable
Hi all, Having an issue here with broken connectivity to NFS datastores from a variety of hosts in a flexpod setup. Here are the facts: - Network config has been checked: - correct VLANs allowed...
View ArticleRe: NFS datastores mounting but not readable
Hi.. My only idea is this VMware KB: NFS connectivity issues on NetApp NFS filers on ESXi 5.x .NetApp Bug decription here: http://support.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=321428 So...
View ArticleRe: Array controller failover (Dell md3020i, esxi5) and VAAI
Dell confirmed this is a firmware bug (on the controller). They don't have a fix out yet, but it's scheduled for August.
View Articlesetting up NFS server - 2008R2, sharing out secondary disk - advice on...
I need to set up a temporary NFS server. I was thinking of creating a virtual machine, running NFS file services on it and adding a second hard disk. I have several attached LUNs available, and want...
View ArticleRe: setting up NFS server - 2008R2, sharing out secondary disk - advice on...
Hi, Refer this doc to understand the diference between eager , lazy, thick and thin, then you will be able to decide which one to choose...
View ArticleRe: setting up NFS server - 2008R2, sharing out secondary disk - advice on...
Mohammed, Thank you. I have read through those and have an idea but still wanted to field the question to others who may have direct experience on the performance I should expect. I'm a little leary...
View ArticlePath Policy Change
I have a LUN with MRU policy.So what happens if I change path selection policy to fixed and indicate another path as the preferred path.Is there any potential risk or downtime to my storage...
View ArticleRe: NFS datastores mounting but not readable
Thanks, Rubeck. I had seen that bug before posting this, actually. It doesn't quite line up with the issue though, as there is very little load (if any at all) and we are using hardware that isn't on...
View ArticleRe: Path Policy Change
Hi , Ideally you should not see any issues while changing path selection policy of lun. However I would prefer to do it when the VM are not running on that ESXI host. RegardsMohammed
View ArticleRe: Path Policy Change
As suggested, you can perform the same in off-peak time. Also please ensure you are considering your environment (ESX version, storage model, fail-over policy used in storage etc...) before making the...
View ArticleRe: Path Policy Change
Thank Mohammed, VipinvkAssume that I have two paths, path1 from HBA1 and path2 from HBA2. Path selection policy is MRU and path1 is using. So if I change to Fixed policy and set path2 as preferred...
View ArticleClik here to view.
Re: Path Policy Change
Hi , Again let me say it, if you have high I/O VM, do not change the path when the VM is running on ESXi host. RegardsMohammed
View ArticleRe: SAN / RAID / vCenter issue
Problem solved. I think we had a SCSI reservation. Rebooted the hosts, released the LUN reservation on the SAN gui, rescanned and we're back in business.
View ArticleIncreasing Disk Size not working completely.
Recently, I noticed a server was nearing the 600 GB hard drive capacity. So (as I have done with other servers), I increased the size of the volume on the SAN. vSphere recognized the increase....
View Article