Convert iSCSI RDM NFS VMKD

Similar Questions

• ISCSI or NFS

  Hello world

  I am deploying ESXi for a client and they are quite short on money. They need at least 2 ESXi servers in order to deploy servers in 2003. They have an exchange 2003 server, several domain controllers, and a database server. The database is a SQL database, but its current use is still quite small. Maximum memory usage is about 4 GB. I want to ask some servers ESXi with 16 GB of RAM 24GO a piece.

  My problem is that in the long run, I need a storage shared for a my phase 2 plan. I then configure VCenter and apply the company licenses to be able to VMotion and some other services. I will also add more ESXi servers around this same time for exchange 2010 and some other applications. Usually, Exchange uses a lot of I/O transactions. I saw that exchange 2010 has decreased its I/O operations by dumping many of its works in the working memory. I was wondering if I can go out with a NAS and NFS. I would use 4 Gbps NICs to a switch. If I paste them, can I have a good link with ESX4i aggregation configuration? If not, is 1 Gbit/s over a good NFS? Experiments using such a slow link instead of 4 Gb/s FC?

  If I can't go out with NFS, whereas I would have to ask a local storage large enough to hold the current servers I want to convert and create for this first phase. Then I would get SAN iSCSI for their next year that is coming.

  Any advice would be really appreciated. Thank you

  Hello

  Would you recommend but using ISCSI or NFS but at these speeds "low" for the next 5 years?

  Mike Laspina has a good post on some of the differences between NFS and iSCSI, the other day.

  Have a read of his article ZFS running via NFS as a VMware store

  It is a little bit technical and focused on the opensolaris ZFS part, but the information you're looking for is especially in there.

  --

  Wil

  _____________________________________________________

  VI-box tools & scripts wiki at http://www.vi-toolkit.com

• Convert a RDM a VMDK (virtual disk)

  We are currently running vSphere/ESX 4 and EMC SAN.  Our SAN is replaced by an updated model.  Dell/EMC will perform the data migration and recently told us that if we want to keep our RDM they would be able to copy their bit to bit.  Which means that we cannot change our size of the LUN.

  They told us to move our existing data to LUN more (or less) that we need to convert our RDMs VMDK.

  We currently have three separate virtual computer that will connect to a RDM on SAN (Exchange, SQL, and a file server).

  Is it possible to convert the RDM in VMDK?  If so, how?

  I searched the forums and has been unable to find an answer.

  Keep your support ticket opened until the problem is solved - you did update the VMware Support?

• Convert a RDM

  Anyone can guide me please how to change a virtual RDM Mode to a physical RDM Mode.

  I therefore need an active Windows 2000 Adv Server VM. The number of logical unit on the backend is a Symmetrix VMAX drive, running on the virtual machine as a virtual RDM Mode.

  Thank you.

  Turn off your virtual machine

  Remove your disk of rdm. Make sure you know what is the path

  It readd as a raw physical disk

  * Note Remove any snapshots that you have

  Here's a walkthrough, if you need it.

  http://sparrowangelstechnology.blogspot.com/2012/08/VMware-VMDK-disk-convert-raw-mapped-LUN.html

• Overhead costs with software iSCSI vs NFS?

  If you use NFS to store your VMS VMDK files, could say nothing about the CPU above for this, compared to the iSCSI Software?

  If you use the FC or iSCSI hardware, it seems, most of the work could be discharged at the HBA, but what about NFS that needs to be done in software? It will be easier that iSCSI from the Vmkernel doesn't have to manage the lower block level access?

  Hello.

  The difference is very small.  Check out the white paper of comparison of the performance of the Protocol storage in VMware vSphere 4 .

  Good luck!

• Help with converter and RDM

  Hello.

  I need to convert a virtual machine that has a disc RDM.

  That's what I did.

  First convert the machine with stand virtual converter only, but excluding disc RDM.

  Then, when the new VM is ready I just add the RDM disk, but windows does not detect it.

  After that I have rescand disks but nothing happens.

  I added the new drive virtual and physical also.

  Why the STRP operating system does not detect the new disk?

  Thank you...

  Yhe comments should see the disc RDM (both physical and virtual).

  Make sure that your have remove old drivers comments (for example the HBA driver) and you have installed the latest VMware tools.

  Then, add the RDM and rescan the drive.

  André

• Convert physical RDM to RDM virtual disc Exchange

  Hi all

  I need to convert a shared disk (SAN LUNS) used by Exchange 2007 SP1 of RDM physical to virtual RDM, I would like to have a confirmation fo this strategy:

  1. Turning off the virtual Exchange Server computer

  2. Remove the disc in the virtual machine configuration vRDM mode (not the disc, of course)

  3. Fix the disc in mode pRDM

  4. Turn on the virtual machine

  Question:

  This stratey is correct?

  could I have a problem with the disc will type?

  Thanks in advance

  Angelo

  Hello.

  That's it – you can document the file mapping according to how many of them you have.  The procedure is also documented in KB 1006599.

  Good luck!

• Convert the RDM virtual disk

  I have two or three of Phsyical MSY and want to conver in VMDK... What is the process to do this?

  I got your PM, basically just treat your virtual machines of RDM, such as a physical server and convert it through the process and it will be automatically created in VMDK format.   Just make sure you select the disks attached to RDM and it can convert.  Which requires you have enough storage space, but the same process as you did with the physical server.

  If you found this information useful, please consider awarding points to 'Correct' or 'useful '. Thank you!!!

  Kind regards

  Stefan Nguyen

  VMware vExpert 2009

  iGeek Systems Inc.

  VMware, Citrix, Microsoft Consultant

• convert physical RDM to virtual RDM

  is there any document to change physical RDM to RDM virtual to a virtual machine?

  I think http://kb.vmware.com/kb/1006599 is what you are looking for.

  André

• iSCSI or NFS + ASM of SAN

  Hello
  
  my questions look at stupid.but it's a matter of simple vary.
  Should I have any iscsi or SAN to install clusterware GR 11, 2 to 5.4 x86_64 OEL?
  
  concerning

  1. create the file

  DD if = / dev/zero bs = 1024 k count = 1000 = / disk1

  2 driver installation closure

  losetup/dev/loop1 /disk1

  3 instrument brand

  oracleasm createdisk LOOP1/dev/loop1

  4 use with ASM

• Storage vmotion a VM with so many vmdk and RDM for NFS

  I try a virtual machine that has so much Storage VMotion vmdk and RDM disks to a NFS data store.

  I do NOT need convert the RDM disks just move the pointer with the VMDK file will be converted.

  Is this possible?

  Now if I try this hot svmotion, I get an error on the RDM which set out the following "virtual disk" drive hard 3' is a direct access mapped LUN that is not supported on the data store 'myEMCNFSds'.»»

  If I try this svmotion cold then I get no warning, but it seems that svmotion is trying to convert the RDM NFS drive.

  Is your RDM in physical compatibility mode?   Check out this article KB http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1001856

  If you have found this device or any other useful post please consider the use of buttons useful/correct to award points

• RS 5 with netapp SRA, FCOE site iSCSI with RDM

  Hi team, could someone please help to veify if it works in this scenario.

  We have PROD site running vmware vcenter 5.0, esxi5.0, SRM 5.0, Netapp 3210 ONTAP8.1 version file server. The VMs are windows Server2008, MS SQL2008 as major DB. Virtual RDM database files. Only FCOE for this site. AD is a physical Server 2003. The rest are virtual machines

  We offer you to have SRM for DR site deployment. The DR site is synchronized with netapp SRA snapmirrror, controlled by the console SRM5.0. Recovery site has no FCOE, only iSCSI and NFS license availble. Always RDM but using iScsi. vCenter 5.0, 5.0, netapp ONTAP8.1 2040 esxi.

  My questions are:

  1. If VMware SRM support DR failover for this case with the different protocol, PROD is FCoE, iscsi DR

  2. If the SRM supports failover with RDM in our case

  3. If the AD DR Server site need to be installed as a new best practices, or we will have to use SRM to switch production announced on website of Dr. What is recommended.

  4. If the physical AD can be kept as the common way and always taken SRM supported

  5. to the recovery site, which is the best practice? To use NFS to store data and iSCSI for iscsi? Or store data and RDM using iSCSI LUNS to simplify?

  
  

  Thank you!
  

  1. Yes
  2. Yes
  3. I would recommend if possible having a domain controller AD, already running on the DR site - it may be a virtual machine
  4. Yes, the PROD site domain controller can be physical
  5. I'd keep all compatible iSCSI so so -.

• Impossible to create RDM on sharing NFS - unimplemented function

  Hi all

  I have a problem, creating a map of CRUDE device on a NFS share. Get an error "failed to create ramdisk: function not implemented (2490377)' when you use vmkfstools:

  / usr/sbin/vmkfstools z - /vmfs/devices/disks/naa.60a9800050336d755a5a5a3473355659 /vmfs/volumes/VMDATANFS/eea-cl1-rdm/eeacl1-sbd1.vmdk - a free

  Tried several suggestion in forums, such as from the creation of inside the right way, but it just doesn't work.

  The environment is a vShere 4.1 new installation that has storage NFS was assigned a 2040 of NetApp FAS. For a virtualized Linux cluster we want or need to create a bundel of RDM disks. When I add a disk in the CR of the host (or the customer vSpere directly connected to the ESX host) and select Raw Device Mappings, and then select the LUN exposed, then I need to specify the data store but only can select 'local' and not the NFS share my VM runs on. The store just does not appear here in the list, or I can select 'Save with Virtual Machine' it (the virtual machine is sitting on the store NFS of course).

  To test, I created the NFS name lowercase. does not work

  Also created a VMFS on the NetApp volume and attached to the host iSCSI hollow. This volume appears in the list to store ROW on the use of VC to add a RDM disk for a virtual machine, also I can use the vmkfstools command line successfully this way.

  I think a RDM link must be supported on an NFS share, right?

  Thanks in advance!

  Welcome to the forums!

  You need a number of logic unit or soemthing which are accessible through SCSI (such as iSCSI). NFS is not supported for this feature.

  http://pubs.VMware.com/vsp40u1/wwhelp/wwhimpl/js/html/wwhelp.htm#href=server_config/c_limitations_of_raw_device_mapping.html#1_12_9_7_8_1

  AWo

  VCP 3 & 4

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• How to compare premises, iSCSI and storage NFS for VMware ESXi 5 with IO Analyzer?

  Hello

  I have 2 hosts ESXi 5.0 with a few virtual machines running. I would compare the IO throughput for my local storage, iSCSI and NFS vmware storage store. Can someone point me to the right direction? I read the documents and tutorials, but I'm not sure how to compare tests from these 3 options.

  I have a need to compare the following storage options.

  Local disk on the ESX host

  iSCSI on QNAP NAS device

  iSCSI on EMC e 3100

  NFS on QNAP NAS device

  NFS on EMC e 3100

  IOmeter seems to be good tool based on reading, but still not clear where to make changes to pass tests of storage to another.

  Thanks in advance,

  Sam

  If you use IO monitor, then you must simply vmotion the VMS to the data store for the device you want to test, and then run the test (and Records results).  Can vmotion for the following data store and repeat.

• NFS and iSCSI

  Hi all

  I will not go into another performance of iSCSI vs NFS because it isn't of interest to me, I would like to gather your thoughts on why you chose NFS or iSCSI and also the differences between the two because I'm not sure.

  The reason behind this, is based on a clean install of our Center of virtual data I have will happen soon.

  At the moment we have currently 5 virtual machines running on ESXi with two virtual machine to connect to an external iSCSI (RAID6) storage. This has worked well for over a year. (So I have no real experience with NFS)

  ESXi and VM host all five is on a 10 k SAS drives RAID1, but now I'm going to follow best practices now that we bought VMware Essentials.

  I'll put the host on the machine and the VM 5 on another separate NAS (ReadyNAS NVX) data store. I will use one of the 4 NETWORK card to connect directly on the NAS using a straight through cable, and the other three in a switch.

  Now, this is why I ask the question. Can I use NFS or iSCSI, on what I've seen there is a lot more technical documents and videos based on iSCSI, but according to me, it's because its aimed at the business market and the huge amount of VM.

  The future may hold an another VM 2-4 but no more than that.

  I have been recommended NFS in the external network manager and trust his opinion but feel that I have no experience of NFS.

  Tips are welcome.

  Specification of the server

  Reference Dell R710

  2 x Xeon processor Sockets (don't remember what model I'm typing this at home)

  24 GB Ram

  2 x RAID1 SAS drives

  4 x Broadcom NIC with iSCSI unloading

  This is the IP address on the cable, a crossover will do.

  AWo

  VCP 3 & 4

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