Server Fault Stack Exchange
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Questions tagged [vmfs]

42 questions
10
votes
6 answers

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 have a new 24-disk storage array with 600GB disks.…
ThatGraemeGuy
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6
votes
2 answers

ESX 5.5 Maximum File Size

We have a ~24TB Datastore (a single LUN mapped via a DAS) which has a VMFS5 Datastore. My understanding was with ESX 5.5 and VMFS5 you can have file sizes up to 62TB (as per this article:…
PnP
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5
votes
4 answers

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 VMs disconnect and the only remedy is to reboot…
Themist
3
votes
1 answer

How to make sure file in VM's folder is copied with VM when cloning VMWare Virtual Machine

I am running a vmware environment (Version 4 unfortunately) which requires me to use a bios rom file in order to run server 2012. I upload it to the root folder of the VM after creation, before boot and change some config lines. bios440.filename =…
ZZ9
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3
votes
2 answers

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: /vmfs/volumes/51193143-2de76e36-d365-001b21b87f7c # ls -lah ls:…
Steffen
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3
votes
2 answers

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 directly to the datastore VMFS or must I SFTP the…
user72003
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2
votes
1 answer

vmkfstools --growfs returns no such file or directory

At a customers site we have 2 (+1 Backup and Test) ESXi server, working independently (without vSphere). The customers request is to replace an SSD RAID with 500GB with a 2TB one. ESXi is installed on that SSD RAID. We used the 3rd server (test one)…
Silberling
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2
votes
1 answer

mount vmfs partition in esxi

I lost connection to an iSCSI disk, and after reconnecting the datastore has not mounted. I can see the VMFS partition, but I'm not sure how to mount it manually. The UI options don't seem to offer an option. I can create a new datastore, but only…
waspinator
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2
votes
2 answers

Converting Thick vmdk to thin after Move from Datastore

I am currently running Vcenter 6.7 and ESXi 6.0 with VMFS5 in our infrastructure. And I often have to move VM disks from a DataStore to another in order to free up space. When using the VCenter MOVE operation on a select VM Subfolder in the…
Alfred Eid
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2
votes
1 answer

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 logs, I found out that since March, 2013 we had one…
antanagildo
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2
votes
1 answer

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 datastore Created new lvm partition using fdisk Create…
CarpeNoctem
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2
votes
1 answer

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 3 TB size. I know the maximum size for a VMFS…
Massimo
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2
votes
2 answers

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
user41653
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2
votes
2 answers

Creating new datastore and VMFS

I was currently working on the ESXi lab and trying to do some work with it. So I have an ESXi that is running on a server and I installed 2 ESXi on it (two ESXi are running on the primary ESXi). The problem is after finishing installing 2 ESXi, none…
Afshin
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1
vote
1 answer

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 failure * .... I guess you guys must already have…
ToreTrygg
1
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