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Questions tagged [lun]

88 questions
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Mapping VDIs directly to software iSCSI LUNs in XenServer

I read in the XenServer Administrator's Guide in section 4.1.6.2 that you can map raw LUNs to VDIs if you're using a NetApp or EqualLogic SAN. Is it possible to do the same with Software iSCSI SANs (i.e. using a Nexenta/ZFS-based SAN as the iSCSI…
Alex
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What is the filesystem used to mount a LUN disk?

How do you mount a fresh LUN disk to your / ? Do you use ext3 or NFS for this ?
Nishant
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Migrating the SAN lun in Linux

How to perform LUN migration in Linux (using LVM and native multipath) from one storage device to another storage device
0mk4r4
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In Debian (>= 5.0 lenny) how to set scsi_mod's max_luns option?

The scsi_mod has this option max_luns which is the "last scsi LUN". How can I view the current setting and change it?
Aleksandr Levchuk
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Virtual system drive is split between separate LUNs

My hardware VMWare guy told me that a Win2008R2 server I have has a D drive that is split between two separate LUNs. He could not tell me if that's a good thing or bad just that it's not standard practice for him. Would you please explain the…
Tigran
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Do I have to have LUN on a iSCSI Target?

I am using Linux, and was wondering, if I could put LVM directly on a iSCSI target without a LUN?
Sandra
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iSCSI LUNs on different VLANs

Is there any way to share different iSCSI LUNs on one iSCSI server on specific VLANs? IE lun1 would only be accessible via devices on eth0.3 and lun2 by devices on eth0.4. I'm using iSCSI Enterprise Target to share the LUNs, don't mind switching to…
Joe
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Assign and remove multiple LUNs from VMs on ESXi 4

We currently have a test environment where we create hundreds of LUNs on our SAN-attached storage array, export them to one or more (physical) servers, run tests on the data contained on the LUNs, then destroy them and repeat. We would like to use…
Zach
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Safe deleting a LUN in VMware

I have a LUN in our VMware 6.7.0 world. For a specific project we need to safe-delete (with a standard method like DoD 5220) the data on this LUN with some kind of deletion protocol. The underlying storage system is a 3PAR SSMC with VMFS 5 and the…
moTHO.
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Physical Volume Actual Utilization for replacement

I have a Volume Group which consist two physical volume of size 10TB each SSD & NLSAS (yes one very slow and other very fast) so total 20TB. I created Volume backupvg with the 10TB SSD & formatted the lv with (ext4) (PV0) While formatting Nlsas…
user1486241
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Connecting to 2 iSCSI targets on same NAS

I have a NAS device with 2 iSCSI LUNs. These LUNs will only ever be used with one server so no switch is involved. I simply ran a Cat6 cable from a 10GbE port on the Server to a 10GbE port on the NAS. From the Windows Server, I launch the iSCSI…
E C
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Clean LUN on HP MSA P2000 G3

I am trying to deploy a self-host oVirt Engine on a SAN HP MSA P2000 G3 LUN. I created a Vdisk and a volume via the Storage Management Utility (SAN GUI). The volume is already containing data because of previous tests and oVirt documentation…
Ninroot
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Centos 7 server isn't able to see fiber channel LUN SCSI devices

I have a Fiber channel connected via SCSI SAN that I am not able to see. I would like to be able to access these drives as if they were mounted. Perhaps the entire thing is I have no to little experience with SCSI devices , but I expected to see…
LUser
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Why is my data not showing up on a shared vmdk on another VM?

Configuration: Netapp (SAN) providing a 5GB FC LUN to VMware hosts (datastore). (2) Server 2012R2 datacenter VMs configured with a 5GB shared vmdk using paravirtual SCSI controller with SCSI Bus sharing set to "Physical" for hosting…
CrashFive
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Deleted a Block type LUN on Synology - is this recoverable?

Following some poor doco - a block type LUN on our company Synology was accidentally deleted with some business critical data on it. This LUN wasnt replicated anywhere or backed up. Is it possible to recover the data that was lost? Can this be done…
kiske
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