Size of the LUN. Urgent request.

Similar Questions

• PowerCLI reports wrong of the LUN size when perennial reservations are met * and * size of the LUN is changed.

  My question is: is this expected behavior?

  In short, the situation is this: we have a cluster running ESXi 5.5.0 build 1746018. Two guests Windows Server R2 2012 are running a SQL Server Cluster (MSCS), making use of RDM with a physical SCSI emulation. Which requires LUNS of perennial reservations activated. All is well until the customer decides to expand two of the LUNS. PowerCLI continues to account for the original size of those LUNs, which breaks our reports.

  Logically, it makes sense, but it still seems a bit of an ejection. Has anyone seen elsewhere this behavior and you have found ways around it?

  See you soon!

  You didn't say how to retrieve the size of the LUN.

  If not through esxcli, not the following returns the correct size (change the hostname ESXi and LUN canonicalname)?

  $esxcli = get-EsxCli - VMHost MyEsx

  $esxcli.storage.core.device.list ('naa.60050768123455af1800009876000023')

• Get the size of the lun by using the name of runtime

  Hello everyone

  Does anyone know how to get the size of the lun using the runtime name?

  $runtimeName = "vmhba0:C0:T0:L3".

  You mean something like this?

  $runtimeName = "vmhba2:C0:T4:L42"
  
  Get-VMHost MyEsx | Get-ScsiLun | where {$_.RuntimeName -eq $runtimeName} |Select RuntimeName, CapacityGB
  

• The maximum size of the Lun

  Hi people,

  What is the maximum size of the LUN vmfs3 and vmfs5?

  Just to add

  In VMFS 3, you may have a data to 64, but this store will be on does not include more than 2 TB.

  This means that you will use 32 2 TB LUN 1 data store. It is not recommended. 1 LUN. bulk loose any data store.

  Where with VMFS 5 you can creat a TB 64 logic unit number (if storage supports) and do a data store.

  Keep the best ratio of 1:1 = 1LUN per Datastore 1 practice

  For more information, see VMFS 3 vs. VMFS 5

  Please mark this thread as answered in the affirmative indeed.

  I keep coming back to my son without response

• Size of the LUN Max size minimum and maximum RDM?

  The Maximums on 4.1 Configuration seems to have been a change in the size of the LUN max, of the strange 2 TB - 512 bytes to just 2 TB. Can anyone confirm that it is correct in 4.1? As I understand it in 4.0, if you got your logic unit number created to exactly 2 TB, you have lost about 500 GB of space (?).

  It would be interesting to know if it is "fixed" in 4.1 and if only the use of 4.1 hosts then 2 TB LUNS could be created?

  In addition, the maximum size of RDM always seems to be 2 TB - 512 bytes in 4.1. What is the reason for this kind of limit? If the guest operating system can accept more large drives of 2 TB, which need not enough?

  ricnob wrote:

  Even on the store of NFS, the maximum size of virtual disk to a virtual machine will be 2 TB - 512 bytes?

  Yes, there is a maximum specified for the virtual machine.

  Would a connection iSCSI comments launched a LUN liked work of 2 TB (if the guest operating system can handle)?

  Yes, it's a way to work around the limitation of current 2 TB - 512 bytes.

  The information about this change in the passage of Q & A at the end of TA7121 - ' next generation VM Storage Solutions with API for integration (VAAI) Array vStorage "was held in San Francisco just a couple of weeks.

  Interesting. Did you get any sense if this possible change should come an update for 4.0 - 4.1 or may appear in a future version, 4.5 or 5.0?

  I will attend at Vmworld in Copenhagen in October, so maybe I should visit this session.

  You know, I don't really have a strong impression be it on this issue.  My stomach seems to tell me that it will be in the next version of main product.  If I remember correctly, one of the presenters of the session was one of the engineers who worked initially make VMFS.  This session was really good, so I recommend anyway.

• HARD drive 2 TB - stuck to the size of the LUN 256 GB

  I'm unable to untilize the free space on a 2 TB HARD drive. I am told is 1.81 TB free space but I'm going to create a data store, I thought that the maximum size is 256 GB. Also, when I try to increase it, it tells me that the value is greater than the capacity of the disc (which contradicts the previous readings).

  Screenshots:

  http://img694.imageshack.us/img694/4851/FreeSpace.PNG

  http://img851.imageshack.us/img851/709/MaxSpace.PNG

  http://img714.imageshack.us/img714/5878/customspace.PNG

  Here is the result complete fdisk:

  ~ # fdisk-l
  
  Disk/dev/disks/t10. ATA___Hitachi_HDS723020BLA642___MN1220F3275YED: 2000,3 GB, 2000398934016 bytes
  255 heads, 63 sectors/track, 243201 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Device boot start end blocks Id system
  / dev/Disks/T10. ATA___Hitachi_HDS723020BLA642___MN1220F3275YEDp1 1 243201 1953511008 + fb VMFS
  
  Disk/dev/disks/t10. ATA___Hitachi_HDS723020BLA642___MN1220F3275XVD: 2000,3 GB, 2000398934016 bytes
  255 heads, 63 sectors/track, 243201 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Device boot start end blocks Id system
  / dev/Disks/T10. ATA___Hitachi_HDS723020BLA642___MN1220F3275XVDp1 1 243201 1953511008 + fb VMFS
  
  Disk/dev/disks/t10. ATA___Hitachi_HDS723020BLA642___MN5220F32ELD3K: 2000,3 GB, 2000398934016 bytes
  Heads of 64, 32 sectors/track, 1907729 cylinders
  Units = cylinders of 2048 * 512 = 1048576 bytes
  
  Device boot start end blocks Id system
  / dev/Disks/T10. ATA___Hitachi_HDS723020BLA642___MN5220F32ELD3Kp1 5 900 917504 5 extended
  / dev/Disks/T10. ATA___Hitachi_HDS723020BLA642___MN5220F32ELD3Kp2 901 4995 4193280 6 FAT16
  / dev/Disks/T10. ATA___Hitachi_HDS723020BLA642___MN5220F32ELD3Kp4 * 1 4 4080 4 FAT16 < 32M

  
  / dev/Disks/T10. 5 254 255984 6 FAT16 ATA___Hitachi_HDS723020BLA642___MN5220F32ELD3Kp5
  / dev/Disks/T10. 255 504 255984 6 FAT16 ATA___Hitachi_HDS723020BLA642___MN5220F32ELD3Kp6
  / dev/Disks/T10. ATA___Hitachi_HDS723020BLA642___MN5220F32ELD3Kp7 505 614 112624 VMKcore fc
  / dev/Disks/T10. 615 900 292848 6 FAT16 ATA___Hitachi_HDS723020BLA642___MN5220F32ELD3Kp8
  
  Partition table entries are not in the order of disc
  
  Disk/dev/disks/t10. ATA___Hitachi_HDS723020BLA642___MN5220F32EGVEK: 2000,3 GB, 2000398934016 bytes
  255 heads, 63 sectors/track, 243201 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  Device boot start end blocks Id system
  / dev/Disks/T10. ATA___Hitachi_HDS723020BLA642___MN5220F32EGVEKp1 1 243201 1953511008 + fb VMFS

  The HARD disk that relates to this is the ESXI HDD: MN5220F32ELD3K, with the FAT16 partitions.

  Even when I try to use the LUN with 256 GB in size, I gives me an error: http://img543.imageshack.us/img543/6163/errorsq.PNG

  To me, it looks like the 3 partition - which should be the VMFS partition - has been deleted at some point!

  You can (at your own risk) follow http://kb.vmware.com/kb/1009829 and try to manually recreate the VMFS partition/data store on the system disk.

  André

• The maximum size of the LUN and VMDK disks

  Hello

  What is the maximum size of a LUN I can introduce to Virtual Center.  What is the disk vmdk maximum size that I can use in a Virtual Machine?

  I use vSphere 4.1 and Virtual Center 4.1.

  Thank you.

  Kevan

  the answer to both is 2 TB minus 512bytes

  http://www.VMware.com/PDF/vSphere4/R41/vsp_41_config_max.PDF

• Increase in size of data store ESXi after increasing the size of the LUN

  Hi all

  Scenario is as follows.

  Remote site with Dell r710 ESXi 4.1 servers 2, 1 Dell MD3200i SAN with 12 600 GB drives.

  Initially when I implemented the San, I created 2 LUNS with 1 TB in each LUN.

  Now, we ran into a situation where we have 1 server which is now need more than 1 TB of sapce on it.

  I've reconfigured the table and now have a unit number logic that I spent in 2 TB to 1 TB and I now need to increase the store of data on the ESX Server.

  If I increase the size he reformatted the LUN whole or just the free space that I create?

  I don't want to remove any exisitng s VM on the SAN.

  maximum size of a vmfs is 2 TB-512 b only. extend wouldn't format the LUNS. Look at this blog: http://www.yellow-bricks.com/2009/03/26/resizing-your-vmfs-the-right-way-exploring-the-next-version-of-esxvcenter/

• How can I increase the size of the police on request or the web browser?

  Everything I print (Word or the web) fate of the tiny print... I read the post that says that the font size is controlled by printing application or program and increase the font size on the web browser or application.    How do I do that?

  You talk to a novice here... guess you knew about this right?

  Hi susan911,

  I don't know that you're a novice, because you told me.

  You are enough common sense to have navigated your way to the HP Forums! Change font size in IE can indeed be a difficult task. In Internet Explorer, click on tools, select Internet options, on the general tab, click Accessibility, click in the box next to ignore font sizes specified on Web pages and click OK, then click OK again. Now you can click view, select text size and choose a suitable text size.

  I know that Windows 8 can be overwhelming, here's a great site for tutorials for Windows 8.1 initiation

  You may already be familiar with most of the information here, but maybe you will find something useful!

• Increase the size of the LUN

  I just asked the guys from storage for little extra space SAN and instead of the sculpture of a new LUN it stretched an existing one.  When I rescan the HBAS I see that the extra space is there, but I understand that it is currently unusable because I can't have two volumes VMFS on a LUN.  Is it possible to extend the size of a VMFS without using extensions?

  ________________________________

  Jason D. Langdon

  Hello.

  If you vSphere, you can use the feature to increase of VMFS Volume to decompress.  With older versions, you can use extensions or leave and then re-create the size VMFS volume that you want it to be.

  Good luck!

• Block size for the Lun ReFS

  Hello

  What is the best choice for the creation of LUN disks of ReFS? 512 bytes or 4K bytes? The range is hosted by cluster Windows 2016 Hyper-V virtual machines. Storage are EqualLogic PS6100.

  Thank you

  Hello

  Just if I understand your question, you refer to the volume block size 512 EQL or 4 correct K?   If so, then it is not really important.  There is no difference in performance at the storage level.  Readers are all dissected 512b, volume 4K simply translated between them on the fly.

  What you want to do is set the size of cluster/sector at the level of the file system to 64K.  Which will correspond to the size of distribution on the RAIDsets.  This allows more effective reads/writes, writes in particular.   \

  I hope that answered your question?

  Kind regards

  Don

• Commissioning of the size of the lun with SRM

  Hi guys I have a question in mind. While this is resolved in the latest version of vsphere 5.x to present more than 2 TB lun.

  the installer, is that I have a virtual machine with 2 TB VMDK for drive D, and 1 TB VMDK for drive E.

  If extended two 2 x 2 TB total lun lun 4 TB in the main site using the storage replication and srm for automation.

  is it automatically adapt the extension of lun I do elementary when I do fail over the site of DR?

  To what extent are you referring?

  Extensions of VMFS - are they bad, or just simply misunderstood? VMware vSphere Blog - VMware Blogs

  Be careful if you use extended MIS program, make sure that your storage space supports the Group of concordance.

  See the guide below:

  Documentation Centre Site Recovery Manager 5.5 - How MRS. calculates Datastore groups

  The recovering site know the multiple measurement data by storage of consistency group store.

• Cannot expand the data store after you have developed the LUN size

  Greetings:

  I have an interesting problem that happens with my server ESXi.  I've expaneded a 1 logical unit number. 5 t 3 t, re-read the SAN of the host itself (not) yet ESXi always reports the LUN size as 1. 5 t and not extensible.

  SAN is an EMC VNX and Unisphere, in fact, reports the size of the LUN 3 t.  The VMFS on this logical unit number is at version 5.54.

  I did updates and renumerisations a single host and nothing does change regarding the size of the LUN as reported in VMware.  I can't imagine what is a tissue issue given that the underlying data is always available and functional.

  Does anyone have any suggestions to try this?

  Ron

  You have a RecoverPoint of installation for this logic unit number? I fell right on the same problem as you described and found this article. It worked for me.

  http://www.mikes.EU/index.php/how-to/254-how-to-resize-a-LUN-that-is-already-replicated-by-EMC-RecoverPoint

  ~ Tim

• The LUN size limits

  I have a question about the size of the LUN. I'm about to have a provider setup a HP Storage Works modular Smart Array P2000 with 20 discs LFF 450 GB. I'm trying to understand the best way to configure the LUNS to maximize the available space. Can I go with 2 LUNS of 10 discs each who would each LUN 3771 GB each? I'll go with ESXi 5, all guests will be Win 2008 R2 64 bit and I intend to have two servers with about 1 TB of office space and about 15-20 with 150 GB of disk space.

  The maximum size of the LUN, VMFS data warehouses and raw physical devices in ESXi 5 is ~ 64TB.

  You can configure the MSA with the LUN sizes you mentioned. However, it also depends on the workload of computer virtual and if you make a backup with snapshots. I probably go with 3 or 4 LUNs and present them on different controllers.

  I'm not familiar with the MSA, however, you should be able to create a large RAID set several records and cut the LUNS in that RAID, the value instead of creating multiple RAID sets with fewer disks.

  André

• the maximum size of the data store in ESXi 4

  as I don't have a lot of space left on my data vmfs3 store, plans to add a 3 TB of HDD to the ESXi 4.1 Host. I will then use the new HDD for a creation of a new data store.

  I also want to ensure that the block size is the same as the existing data store.

  Please notify.

  Thank you.

  The maximum size of the LUN/disk in this case is 2 TB less 512 bytes (see KB VMware: ESX/ESXi 3.x/4.x hosts don't support 2 TB LUN for more details). The maximum size of virtual disk with a block size of 4 MB, please take a look at the article I mentioned in my previous post.

  André