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9
votes
6answers
34k views

VMware VMFS5 and LUN sizing - multiple smaller datastores, or 1 big datastore?

With VMFS5 no longer having the 2TB limit for a VMFS volume, I'm considering which scenario would be more beneficial overall:- Less LUNs of larger size, or More LUNs of smaller size. In my case, I ...
3
votes
2answers
524 views

Is it possible to copy a (.ISO) file that lives on an NTFS file-system within a VMDK file to the datastore VMFS using ESX SSH terminal?

I have several .ISO DVD backup files stored on a virtualized Win2008 server. Is there a simple way to mount the NTFS partition stored in a VMDK file using the ESX SSH terminal so that I can copy it ...
3
votes
4answers
2k views

ESX hosts lose connectivity with iSCSI SAN LUNs

I've been experiencing this issue for a couple of months now where my ESX hosts lose connectivity with my iSCSI SAN vmfs volumes. As a results the ESX hosts enter a nonresponsive mode the associated ...
3
votes
0answers
229 views

ESXi 4.1 VM gone after hard reboot

I have a serious problem here. After I forced a reboot of a freezed ESXi 4.1 server, a VM is literally gone. When I ssh to the host and run ls -lah inside the datastore, it returnes: ...
2
votes
2answers
1k views

Performance stats for ESXi VMs on Openfiler NFS

AFAIK VMWare utilise it's own filesystem vmfs for performance and efficiency reasons. What will that be if I host my VMs on an Openfiler server which setup as NAS using ext3 filesystem? Thanks
2
votes
1answer
502 views

VMWare ESXi 4 VMFS Recovery

Had a big time problem with our ESXi 4 on a IBM X3400 M3 with LSI MegaRaid. 4 x 1TB in RAID 10, for 2 datastores of 1 TB. Haven't done any maintennance since 2010. My own big sin! 80) From system ...
1
vote
1answer
163 views

NTFS recovery after installing ESXi

I got this server where I had a Windows 2003 installation on, and I didn't think I needed it anymore, so I desided to install ESXi on it for testing purpose. But now I just found out that there where ...
1
vote
1answer
3k views

ESXi 4.1: how to make use of an iSCSI LUN bigger than 2 TB?

I have a ESXi servers (4.1 U1) connected to an iSCSI NAS, where 4 LUNS have been defined and presented to this host; all the LUNs are 3 TB in size. ESXi correctly sees the LUNs and acknowledges their ...
1
vote
3answers
562 views

howto access esx filesystem

need to copy VM files (vmdk etc) to usb disk for backup purposes. tried booting with partedmagic 4.9..but cannot access the vm files on disk. any thoughts?
1
vote
2answers
10k views

What is the largest VMware ESXi 5 guest vm disk size (and how to set it up)?

Is it possible to set up a guest virtual machine with larger than a 2TB drive? For example, from what I read, the largest VMFS size is 2TB. If I have 3 TB VMFS set up on the host ESXi server, how ...
1
vote
1answer
1k views

Is there a way to check to see if your VMFS partitions are aligned on storage?

I'm running ESX 3.5 currently, and about to set up 4.0 on a new HP EVA4400. Once the servers running 4.0 are up, I'll be migrating all of the 3.5 VMs over to the new datastores using Storage vMotion ...
1
vote
2answers
211 views

Adding storage to ESXi host

We have two hosts running VMWare ESXi 4.1. Both are connected to a RAID 5 array via iSCSI. We added three more disks to the RAID array. Now I need to assign the new storage somehow to the ESXi hosts. ...
1
vote
1answer
620 views

VMWare vmfs vs NFS datastore with vmdk?

I want to add a new harddisk to an existing VM and want the best performance possible. The new hard disk will exist on an NFS datastore. Currently I did the following: Created new vmdk on NFS ...
1
vote
2answers
1k views

ESXi 3.5 Corrupted (flat & delta) vmdk files

Today, I found that one of my VM hosted in ESXi 3.5 cannot be started, the error in /var/log/messages was Mar 14 00:56:21 vmkernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error } Mar ...
1
vote
1answer
846 views

How can i create a VMFS datastore on an ESX 3.5 after ESX installation

I have an ESX 3.5. After adding it to the VC i was getting an error message "The VMware ESX doesnot have a persistent storage". I think its because the VMFS partition has not been created during the ...
1
vote
1answer
2k views

VMFS recovery - how do you proceed?

The more I look into ESX the more often i have to handle cases where the partition table of a disk with a VMFS volume gets corrupted. The reasons for this can be * idiot user * failed update * power ...
1
vote
0answers
93 views

VMware ESXi extremely slow Virtual disk performance compared to RDM

I have a ESXi 5.5 server running with a FC SAN. The FC san is created using an openfiler OS with software RAID and exported with the qlatgt driver. Direct writes to this SAN when no VMFS is used work ...
1
vote
1answer
1k views

what are VMware P2V dynamic disk best practices?

We are trying to figure out the best way to do a P2V on one of our main file servers (windows server 2003). Currently the server is physical with an MD1000 hard drive array attached through scsi, we ...
0
votes
1answer
471 views

Can't mount mount vmfs disk in debian 6 using vmfs-fuse, VMFS unsupported version 5

I have a problem with my server. I recently replaced ESXi for Linux Debian, and i want to mount my second disk on my debian installation using vmfs-fuse. I already installed the vmfs-fuse package, and ...
0
votes
1answer
1k views

Mounting vmfs5 under linux?

Can anyone tell me if there is a safe (i.e. data won't be corrupted) a VMFS 5 filesystem under linux, where the VMFS 5 filesystem is already mounted by several ESXi hosts in a vSphere cluster? Thanks ...
0
votes
2answers
3k views

Is there a tool to browse a VMWare VMFS datastore hard drive on a PC?

I would like my VMWare ESXi 5 server to have a USB-attached HDD datastore which I'd be able to detach, attach to my laptop and browse files on it. As far as I understand, the hard drive is to be ...
0
votes
2answers
365 views

How do you calculate your array throughput with VMFS?

How do you calculate your maximum throughput available for a RAID volume? Do you use your VMFS block size per IOP? Your OS Blocksize? Your array stripe size? Any idea?
0
votes
1answer
1k views

ESXi 4 Expanding VMFS partition, does order matter?

I'm trying to get ESXi4.0.0 to increase the VMFS partition to match my newly increased RAID 5. I went from ~850GB to 1250GB on the RAID virtual disk, and VMWare is showing the correct amount of space. ...
0
votes
2answers
3k views

VMFS undelete in ESX4i [closed]

So, I have this friend that deleted a VMDK that had all his family photos on it. ESX4i did not prompt him that the disk was in use, and he thought he was deleting a disk that belonged to another VM. ...
0
votes
2answers
2k views

How to attach existing VMFS disks to VMWare ESXi

After reinstalling VMWare ESXi server, how can I attach existing VMFS partitions? I looks like the only way to do this is to have them formatted, and I'd really like to keep the existing data ...
0
votes
1answer
115 views

VMware ESX 3.x: How to connect two ESX server to a single VMFS datastore on SAN

I'm generally a networking guy but I'm trying to learn VMware. I'm running two ESX 3.x servers with virtual center. I know that it is possible to create redundancy or high availability by configuring ...
0
votes
0answers
93 views

Boot disk with VMFS read/write driver

I want to rule out the ESXi kernel being the cause for my terrible 15MB/s write speed on the local VMFS datastore. I am using a Dell PERC H710 RAID controller, and would like to boot from a boot disk ...
0
votes
0answers
650 views

Reconstruct deleted virtual disk in PERC 710 RAID Array

Today, I did the dumbest thing I've ever done in my life. I have a PowerEdge server with a PERC 710 RAID controller. I had 4 drives in RAID 5 configuration (1 2.7 TB Virtual Disk) and I wanted to ...
0
votes
0answers
313 views

ESXi 5.1 local datastore no longer accessable

I'm running ESXi and just recently rebuilt a raid array, and now an existing local datastore is no longer accessable in ESXi. The details: Original Configuration: 1x usb drive (on the backplane) ...
0
votes
1answer
532 views

esx 4 vmfs3 RAID REBUILD

I have a ESX 4.1 Server with a storage on RAID 60. After the rebuilding of the RAID the vmdk-files are not working in my VM. On starting VM i have this error Cannot open the disk ...
0
votes
2answers
3k views

Can I have different ESX hosts accessing the same LUN over different protocols?

I currently have a cluster of two ESX 3.5U2 servers connected directly via FiberChannel to a NetApp 3020 cluster. These hosts mount four VMFS LUNs for virtual machine storage. Currently these LUNs ...