StarWind iscsi storage problem

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• iSCSI storage problem ESXi 5 u1

  Hello

  We have six ESXi 5 u1 servers connected to the storage unit Dell EqualLogic 65xx series. On ESXi systems we use the iSCSI Software and PSP is set to RoundRobin. We investigated a question where randomly throughout the day that we receive the following warning:

  VCenter:

  Failed to write command to write-suspended partition naa.6090a08890b27eeab8cee499fb01a0f6:1

  VMKernel:

  WARNING: ScsiDeviceIO: 3075: order of writing-suspended bulkhead 6090a08890b27eeab8cee499fb01a0f6:1 write failure

  Capability3: 13359: Max (10) attempts exceeded for appellant Fil3_FileIO (status "IO has been abandoned by VMFS via virt-reset of the unit")

  BC: 1858: cannot write (couriers) object '. iormstats.SF': level core exceeded Maximum attempts

  Also, we see a lot of messages indicating a loss of connectivity, iSCSI volumes:

  Lost access to the volume (LUN_NAME) 4f58ac5f-ef525322-XXXXXXXXXXXXXXX because of connectivity issues. Recovery attempt is underway and the result will be
  reported in no time.

  This event is generated by all six guests at random time intervals and LUN iSCSI target different. At the same time, we notice a very high spike in CPU usage of 100% on the host that generates the message

  One thing we found through tests of vmkping is that ESXi hosts are configured for extended frames (9000 MTU vmk, vswitch and adapters), but the storage network, does not allow frames.

  This could be an indication of serious IP fragmentation on iSCSI? How we measure this?

  conraddel wrote:

  One thing we found through tests of vmkping is that ESXi hosts are configured for extended frames (9000 MTU vmk, vswitch and adapters), but the storage network, does not allow frames.

  This could be an indication of serious IP fragmentation on iSCSI? How we measure this?

  Do you know if the side SAN is configured for frames? If not, then it should probably not be a problem, given that the TCP connection will take care of the other so-called MSS sizes and your guests should get off by default the images of sizes.

  The worst situation would be if both the ESXi and the SAN supports jumbo frames, but not the switches between the two. Because the switches are 'invisible' problems don't happen, until you actually start sending larger images and those will arrive in silence by switches, i.e. no IP fragmentation.

  Have you also checked with vmkping what kind of end-to-end connectivity, you have? Options-d and s are very important get right: http://rickardnobel.se/archives/992

• Problem when adding 2nd host in Iscsi storage shared

  Hello people.

  I'll try to explain exactly my problem even if it is a little difficult liitle!

  First of all, we are talking about a test environment that is installed in my house just for learning purposes.

  I am facing a strange my iscsi storage behavior when trying to join a second host to storage vmotion purposes. I was using an Esx host (3.5) for a while and I had no problem with the iscsi storage (I use an old pc with freenas on it). I must say that I got lucky, also, local sata controllers have been recognized so I could test the Storage Vmotion between two storages (Commons and iscsi) with success in this host.

  To continue to learn, I decided to also buy another pc to test Ha cluster, Vmotion, DRS. Unfortunately, I couldn't find the same material and who as well as sata controllers do not to be recognized, so I used a disk ata for OS and my intention was to use for the volume vmfs3 iscsi storage.

  In the first host esx I used, you can see 3 storage adapters: vmhba32 vmhba33& gt; Controllers local sata,34vmhba& gt; initiator iscsi software

  In the second esx host, you can see only the vmhba32- & gt; the iSCSI Software initiator.

  The first time everything worked ok, which means that I have attached iscsi storage in host the2nd by rescaning the vmhba and I was able to browse the datstore and see the contents of it, but it lasted only 10 minutes. Then suddenly I lost the connection to common storage to both hosts, I could see in the section maps of storage, but when I pressed update in the storage section, nothing happened and even when I tried to add it using the add storage I received the message usual "cannot read the partition table information. After being a little more careful I noticed that in the section storage cards, I could see the same vmhba34 in the two hosts with the same alias to the host of the first, and here's the strangest part, the situation I described above has been changing from time to time, which means that a few times I have seen the vmhba32 in both hosts and after some time vmhba34 in both hosts! (crazy)

  I took the big decision after playing with the partition table, without effect to use the ' vmkfstool - C vmfs3 s ' _free "_ / vmfs/devices/disks/vmhba32: 0:0:1" command

  in the second host, of course, I lost all data, but now with a simple refresh in this host, I was able to see the storage.

  Unfortunately, I still couldn't ' 1 host storage access and I published the same command "vmkfstool - C vmfs3 s"free"" / vmfs/devices/disks/vmhba34: 0:0:1 ""

  with only the change you see in bold. Accordingly, it was to see the storage after a refresh with free (1) name.

  Now he is currently working for 2 days with this way not recommended and what I would be really grateful if could help me clarify what exactly is happening.

  My main problem is that I am in front of a very unstable environment that might as well have the same unexpected problem in the future and I can't reformat always storage and loss of all virtual machines

  I tried to describe the best I could to this strange situation!

  Thank you for your time and any help or advice would be most welcome!

  I was looking for a similar solution. Seems to be the only iSCSI host is possible on freeNas. See here: http://apps.sourceforge.net/phpbb/freenas/viewtopic.php?f=53&t=403&sid=f4881e6e25e752e6ee8c6b0eae5887d3

  The only solution for learning seems to be to install the server ESX or ESXi in a virtual machine and then use iSCSI. Vm Instructions to complete the installation here (you must all PDFs 6) http://knowledge.xtravirt.com/white-papers/esx-3x.html or you can replace the opnefiler by the SUN's VM iSCSI. http://www.sun.com/storage/disk_systems/unified_storage/resources.jsp , you must use the vmware converter to convert the SUN's virtual to be used in ESX machine found this in a forum... but can not find more URL. I have not tried myself but, looking for just because you want to get a similar setup.

  Wolfgang

• iSCSI network problem

  I have simply attach an iscsi storage to ESXI and then allocate space on the storage to a virtual machine. In the virtual machine I copy a large file (about 4G) to this disc, in the process, it's always happened that adaptation procedure does not.

  I tried iStorage server and Starwind. iStorage server is a little better than Starwind in performance.

  Without details about your configuration, it is difficult to say what the problem is. Please provide as much detail as possible about your test environment, the versions that you are using and the configuration of the network (especially the iSCSI configuration).

  Best bet is usually to use the vendor's documentation best practices. On the site of Starwind you find these resources, Kernsafe site is not easy to find documentation and what I've found, it's a little outdated (configurations for ESX 4.0), but maybe I missed something. However, given that you work for Kernsafe I am sure that you have access to the documentation.

  André

• Debian Wheezy 7 - iSCSI / LIO problem with ESXi 5.0

  Hi all

  I had a Debian Wheezy on a HP ML310e server. This server should be used as an iSCSI - storage server.

  Unfortunately I am not able to connect my 5.0 with LIO iSCSI target ESX servers.

  I used the implementation of LIO (targetcli) for iSCSI and I used the official installation manual Linux target SCSI - ISCSI.

  I know that the discovery of the Portal works, because when I enter the IP Address of storage in the dynamic discovery, the two portals of storage can be found. BUT any new features.

  I disabled the CHAP authentication, because I thought that it might have to do with it, but still no go.

  My Windows 2003 R2 64 bit backup server can connect without a problem.

  I have a feeling it's something small, but unfortunately I can't find any debugging or a newspaper for the login process.

  Here is some info on my system:

  4 ESXi 5.0 x 623860 mit vCenter 5.0.0 623373

  HP ML310e as a storage server with:

  Debian GNU/Linux 7

  Linux avaNAS 3.2.0 - 4-amd64 SMP 3.2.46 - 1 + deb7u1 x86_64 GNU/Linux Debian #1

  [INFO] 2013-11-10 01:44:39 Using configshell version 1.1

  [INFO] 2013-11-10 01:44:39 Using rtslib version 2.1

  [INFO] 2013-11-10 01:44:39 using targetcli version 2.0rc1

  Is attached a screenshot of the current configuration of the TargetCLI.

  Thank you very much for your help!

  See you soon,.

  Alex

  Hi all

  Sorry for the late reply.

  I found a problem with MTU 9000.

  One of the switches does not 9000 MTU packet transport.

  After changing the MTU to 1500, everything works like a charm.

  See you soon,.

  Alex

• Best way to disconnect the iSCSI storage

  Hello

  I have a server cluster, connected to the Equallogic iSCSI storage. I want to delete and re-create a volume storage, but in a fairly safe way.
  Ideally, I would be able to take the volume out of action for a few days, but there are avaiable to reconnect if necessary. Normally, I would do this to simply put the volume offline. It can then be seen by the hosts, but I put it online as appropriate.
  East - meaning the best, though? It does not seem to cause some problems that are to do with map software iSCSI being unable to find the device, until a new analysis/reset of the host is according to me.
  Can anyone suggest a better way to do this?

  Hello.

  The procedure is described in http://kb.vmware.com/kb/1015084

  Good luck!

• Deliver the addition of iSCSI storage visible via vSphere (direct host or vCenter)

  Hi all

  I'm having a strange problem when I try and add a second drive to my host ESX 4.1. The storage is visible, but when I go to add it via the add storage wizard I get the following error message:

  Call "HostDatastoreSystem.QueryVmfsDatastoreCreateOptions" of object "ha-datastoresystem" on ESX '172.16.10.221' failed.

  As shown below:

  

  

  The error is the same weather, I try to add via vSphere connected to vCenter or ESX 4.1 host directly.

  The funny thing is that I have a small iSCSI target on the same iSCSI storage that works very well.

  Here is my config network:

  

  And here is my config to storage adapter:

  

  I have also attached my vmkiscsid.log of the esx host file.

  I think what's happeneing, is that the ESX host tries to enter and format the storage via the console port of service instead of the iSCSI port I created but I could be wrong.

  Any help would be greatly appreciated!

  Thank you.

  Pell Manny.

  Size of the disk (including the iSCSI LUN) is still limited to 2 TB minues 512 b... Try to drop the size of the iSCSI LUN down that maximum and try again... I would bet that the 'small' target that you have not had any problems with less than this limit is...

  Network administrator

  VMware VCP4

  Review the allocation of points for "useful" or "right" answers.

• Can't see iscsi storage

  I have set up a virtual machine with two vmxnet eth adpt 3. a tip to the network and the other to point to my storage.  Having a problem to see my iscsi storage. I see only an address in the ip observed range and sound of my Vcenter server that has an ip of my config suggestions SAN management.

  You must create a portgroup VM for iSCSI network on the vSwitch where physical right iSCSI network is connected.

  Use the same network address, then try to do some testing with ping (for example).

  André

• I have 50 GB of iCloud and my computer is full because of photo storage problems. How can I get these pictures in my icloud? I checked all my settings. Everything is as it should be. I feel as if I had downloaded originals or something.

  I have 50 GB of iCloud and my computer is full because of photo storage problems. How can I get these pictures in my icloud? I checked all my settings. Everything is as it should be. I feel as if I had downloaded originals or something. I don't know how to understand it. I Googled, I tried to get on my computer. Emptied my Recycle Bin and my download folder. I know I must be missing something.

  We need to switch to "Optimize the storage of Mac", see it - http://www.imore.com/how-save-space-optimized-storage-and-icloud-photo-library

• iPhone storage problems

  Hello, I have storage problems with my iPhone 6. I have the 16 GB model and it seems to be showing me that I used more storage than I actually have. Under the management of storage in the settings section it says I used 11.6 GB and have 83.1 MB of available space. However when I add up the use of the storage for each application he ads only up to about 2.5 GB. In addition, on iTunes on my MacBook, it shows that I have 6.65 GB free. I tired delete apps and optimize Photos stroage and elimination of most local music from the phone. It was me that more sotrage space however when I checked later return that he had exhausted more storage without having downloaded me all the apps, photos, or music.

  iTunes and iOS do not display the use of storage the same way. The best way to ensure that the iPhone is deleted unnecessary files, including video streaming, old app data, etc., is to perform a restore. Make sure that the backup you make in iTunes is encrypted, so all of your critical data is kept. Import all your photos, music, too.

  Restore your iPhone, iPad or iPod touch from a backup - Apple Support

• iPhone storage problems 6

  In the last two days, I get alerts non-stop from my iPhone saying I don't have enough storage space.

  My camera and WhatsApp are blocked

  Even if I deleted a lot of apps, deleted all my photos (including the deleted items) and archived most of my conversations of WhatsApp.

  I synced my iPhone and installed the new version of the software - so everything is clean and up-to-date

  Always - the problem persists and there is storage problems.

  Until two days ago, there was no problem and I got a lot of data on the phone - now I have half of the size of the data and the phone is full and stuck.

  It seems a bug or something because it makes no sense... Two of my friends have the same problem!

  What can I do and how can it be solved?

  Help, please!

  This thread:

  storage of iphone issues 6

  addresses the issue in detail; suggested solutions are doing a restore and remove the Whatsapp application.

• Anyone having problems with iOS 9.2.1? Storage problems, apps not working?

  Anyone having problems with iOS 9.2.1? Storage problems, apps not working?

  No, not at all. Maybe if your were to describe the issues a little more in detail, someone might be able to help.

• iPhone 6 How to erase pictures off bot phone not cloud... storage problem

  How to delete all my photos my phone is turned off, but NOT out of the cloud... I have an iPhone 6 and have storage problems?

  It's complicated because if you have iCloud photo library, then no matter what in iCloud will always be visible and taking place on your phone.

  The best option is to choose the option 'OPTIMIZE the PHOTOS' in the settings Photos & the phone camera.

  This will keep a smaller version of the photo on your phone with the full version on iCloud.

  If you already have the option optimize running and you are still low on space, so the only thing to do is to delete some that are sitting in iCloud. It will then take even the version optimized on the phone.

• Migration of ESXi 3.5 to ESXi 4 (ISCSI storage)

  Hey everybody!

  I want to migrate to ESXi 3.5 to ESXi 4. But there is a question that I can't answer by myself.

  I use ISCSI storage, what is put in shape with "VMFS 3.31".

  Is it Possible to use this storage simultaneous ISCSI of the two systems, also an ESXI 3.5 and a 4 Hostsystem ESXI?

  Does anyone have experience in this context?

  Greeting of the Germany and thank you,.

  Kay

  Welcome to the forums - Yes you can - the migration of high level plan is updated vceneter (it can manage ESX 4 hosts both ESX 3.5)-> upgrade ESX hosts (they can coexist in the same groups and data centers)-> then upgrade the virtual hardware to virtual machines and VMware tools.

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• How to remove the iscsi storage

  Hello

  In the test LAB, I have 2 ESX 3.5 (ESX-1 and ESX-2) attached to the same iSCSI storage called OPENFILER (they have all both local storage).

  1. I want to remove the OPENFILER ESX - 2 storage. Then, right-click on the storage and click on delete. It is said: the resource is in use.

  I tried to put the machine in maintenance mode. Did not help... I have to take it apart this machine?

  What is the right way to do it?

  2. I installed two virtual machines on my storage OPENFILER ESX-1.

  As I mentioned earlier the same storage connected to the ESX-2. When you browse OPENFILER I can see the machines on this (installed on the ESX - 1)

  How do these machine under ESX - 2 inventory. Must I do VMotion or Migration. Sorry came not at that point yet.

  So, before the question, I would like to know the answer to the question two.

  Thank you

  Michael.

  1. I want to remove the OPENFILER ESX - 2 storage. Then, right-click on the storage and click on delete. It is said: the resource is in use.

  I tried to put the machine in maintenance mode. Did not help... I have to take it apart this machine?

  What is the right way to do it?

  Both an ESX 2 can see unit number logic used by the data store that it will be displayed in the list storage ESX-2 - the only way to remove it is that you will have to hide the LUN the openfiler or ESX - 2

  2. I installed two virtual machines on my storage OPENFILER ESX-1.

  As I mentioned earlier the same storage connected to the ESX-2. When you browse OPENFILER I can see the machines on this (installed on the ESX - 1)

  How do these machine under ESX - 2 inventory. Must I do VMotion or Migration. Sorry came not at that point yet.

  The question is you manage these two hosts with Virtual Center - if so you will not be able to have existing virtual machines on two hosts at the same time - in which case you will need to migrate virtual machines from one server ESX to another - with them off a Migration cold or with them under tension - a hot Migration also called VMotion that will require a SAN or a NAS/NFS - shared storage if you are don't not to help Virtual Center, you can save virtual machines using the browser to store data but the virtual machine can only be run on an ESX Server, both-

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful