Latency of disk windsurf ESXi 4.1

Similar Questions

• Latency of disk metrics

  Latency of disk metrics

  Can only be recovered through the SDK?

  Thank you

  Jan

  Yes, take a glance performanceManager and specifically disk i/o counters where you will be able to retrieve the parameters of disk latency

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• Latency of DISK vscsiStats troubleshooting

  Hello forums.

  Could use an expert overview for a problem I have with some VM.  Use of resources is not the ability in some way.  No pretense of CPU but VM are slow - and often its bad or sometimes just slow.  The virtual machine had this, but for some time now, I know that we add more virtual machines in our lab, so that could explain the latency

  I would like someone offer help on using vscsiStats to vmdisk of troubleshooting related problems.  On the virtual machine, as I watched in perfmon, I noticed a somewhat long average disk queue length.  I ran vscsiStats and obtained after 30 minutes.  Please let me know if I understand this right.

  vscsiStats run with string only included latency IOs not in read/write latency.  Both drives are on the same data store.

  VMDISK 1

  Histogram: latency of IOs in microseconds (US) virtual

  machine worldGroupID

  121 min

  Max 14440236

  average 327165

  County 15524

  Histogram of the frequency

  Limit of bucket

  0                            1

  0                            10

  0                            100

  1488 500

  1929 1000

  1453 5000

  1618 15000

  1688 30000

  1070 50000

  1546 100000

  4732 100000

  VMDISK - 2

  Histogram: latency of IOs in microseconds (US) virtual

  machine worldGroupID

  159 min

  Max 14245418

  average 478629

  County 3446

  Histogram of the frequency

  Limit of bucket

  0                                 1

  0                             10

  0                             100

  1722 500

  146 1000

  136 5000

  15000 65

  30000 59

  50000 46

  100000 88

  1184 100000

  I don't really understand our provision of storage very well and I apologize I'm trying to learn it.  We use NetAPP, but I don't think that we all use the NetAPP storage.  These discs are fixed with 4 Gbps HBAS that are a SATA drive.

  My understanding of the above is the following:

  4732 written = & gt; 1 tenth of a second

  1546 written & lt; =.1 tenth of a second

  1070 written & lt; =.05 hundredths of a second

  My math may be a little off but it's a lot of latency for disk i/o? Your help is appreciated.

  See you soon,.

  Chad King

  VCP-410. Server +.

  Twitter: http://twitter.com/cwjking

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  You're right, it comes by I/O latency. This means that an important part of your IOs have a greater than 100 milliseconds latency, it is high enough to be honest and I'm not surprised if you would notice general slowness. I wonder if you have for example checked if your disks are aligned or not? This could contribute to this level of latency. I also wonder how many links, you must return to your file server?

  Another thing worth investigating is the use of the processors of the spin.

  Duncan

  VMware communities user moderator | VCDX

  -

• Alarm for the latency of disk esxi-home

  I would like to set a new alarm to monitor all esx host disk latency in our vCenter.

  We found the settings, to set up this point for a virtual machine.

  [vCenter alarm-> add new detector for a virtual machine-> trigger Type: disc Total VM Max (ms) latency]

  So we need the same alarm, but for the esx host. But I can't find the right trigger type neighter events on the right (for which we can configure an alarm).

  The problem is that sometimes the Raid Controller battery is defective and then we notice everything by checking the performance of the disks-esx table:

  

  We need an alarm for exactly this measure: drive higher (ms) latency.

  I also searched for setting up an alarm in the store of data according to, but without success.

  Maybe someone has an idea how to set up such an alarm.

  Hello!

  There isn't any support in Client vSphere or vCenter. You can use esxtop to know but there is a lot of work to get a sort of wake-up call.

  A VMware product for this is vCenter operations, but it might be too depending on your environment.

  There is many products from 3rd party who will do that for you. vKernel VoP (formerly called vFoglight and I think that Veeam One will do this for you.)

  -Martin

• "the high latency of disk" on the performance tab appears

  Is it normal to have absolutely no activity on the upper Desk of the default latency '1 day summary' tab in vCenter performance? I have the latest updates on vCenter and ESXi 4.0.0 running on my hosts. Guests show CPU, disk use, and use of memory... but zip on this disk latency. We use a copula of IBM Nseries 6040 boxes I think (same as Netapp 3040) with NFS (no fibre channel).

  Since NFS is the network file system and not a block, file system you get not disk performance statistics, it is normal.

• Backup errors with backup of thin provisioned disks on ESXi 5.1

  Hello

  I try to set up a backup solution for two servers in ESXi 5.1. (free version).

  I have installed and configured the ghettoVCB successfully and everything seems to be ok.

  However, when I start to create a backup, the process would end with an error :-(

  It didn't matter if the server is enabled or disabled, I get the same result.

  All data warehouses are local, 2 x free WD500GB with plenty of space.

  There is no snapshot, anything that could (in my eyes) prevent a good backup.

  The server works perfectly, when turned on.

  I'd appreciate any useful comment. Thanks in advance! The log is attached.

  / vmfs/volumes/519fceb8-3d39150e-2D0F-001999eeb339/ghettoVCB-Master #./ghettoVCB.sh f vms_to_backup
  Recording output to ' / tmp/ghettoVCB-2013-05-25_20-56-28-324192.log '...
  2013-05-25 20:56:29 - info: = ghettoVCB NEWSPAPER BEGIN =.

  2013-05-25 20:56:29 - info: CONFIG - VERSION = 2013_01_11_0
  2013-05-25 20:56:29 - info: CONFIG - GHETTOVCB_PID = 324192
  2013-05-25 20:56:29 - info: CONFIG - VM_BACKUP_VOLUME/vmfs/volumes/backup/ghettoBackups =
  2013-05-25 20:56:29 - info: CONFIG - VM_BACKUP_ROTATION_COUNT = 3
  2013-05-25 20:56:29 - info: CONFIG - VM_BACKUP_DIR_NAMING_CONVENTION = 2013-05-25_20-56-28
  2013-05-25 20:56:29 - info: CONFIG - DISK_BACKUP_FORMAT = thin
  2013-05-25 20:56:29 - info: CONFIG - POWER_VM_DOWN_BEFORE_BACKUP = 0
  2013-05-25 20:56:29 - info: CONFIG - ENABLE_HARD_POWER_OFF = 0
  2013-05-25 20:56:29 - info: CONFIG - ITER_TO_WAIT_SHUTDOWN = 3
  2013-05-25 20:56:29 - info: CONFIG - POWER_DOWN_TIMEOUT = 5
  2013-05-25 20:56:29 - info: CONFIG - SNAPSHOT_TIMEOUT = 15
  2013-05-25 20:56:29 - info: CONFIG - LOG_LEVEL = info
  2013-05-25 20:56:29 - info: CONFIG - BACKUP_LOG_OUTPUT = /tmp/ghettoVCB-2013-05-25_20-56-28-324192.log
  2013-05-25 20:56:29 - info: CONFIG - ENABLE_COMPRESSION = 0
  2013-05-25 20:56:29 - info: CONFIG - VM_SNAPSHOT_MEMORY = 0
  2013-05-25 20:56:29 - info: CONFIG - VM_SNAPSHOT_QUIESCE = 0
  2013-05-25 20:56:29 - info: CONFIG - ALLOW_VMS_WITH_SNAPSHOTS_TO_BE_BACKEDUP = 0
  2013-05-25 20:56:29 - info: CONFIG - VMDK_FILES_TO_BACKUP = all
  2013-05-25 20:56:29 - info: CONFIG - VM_SHUTDOWN_ORDER =
  2013-05-25 20:56:29 - info: CONFIG - VM_STARTUP_ORDER =
  2013-05-25 20:56:29 - info: CONFIG - EMAIL_LOG = 0
  2013-05-25 20:56:29 - info:
  2013-05-25 20:56:35 - info: start the backup for server W2003
  Destination disk format: thin provisioned VMFS
  Cloning disk ' / vmfs/volumes/519fceb8-3d39150e-2d0f-001999eeb339/w2003-server (2) 2/w2003 Server _1.vmdk'...
  Clone: 36% of fact.
  2013-05-25 20:59:34 - info: ERROR: error in the backup of "/ vmfs/volumes/519fceb8-3d39150e-2d0f-001999eeb339/w2003-server (2) 2/w2003 Server _1.vmdk ' to W2003 Server
  Destination disk format: thin provisioned VMFS
  Cloning disk ' / vmfs/volumes/WD500GB-1/W2003-Doma¤ne/w2003-server (2) hard '...
  Clone: 66% of fact.
  2013-05-25 21:08:59 - info: ERROR: error in the backup of "/ vmfs/volumes/WD500GB-1/W2003-Doma¤ne/w2003-server (2) hard" to W2003 Server
  2013-05-25 21:08:59 - Info: backup time: 12,40 Minutes
  2013-05-25 21:08:59 - info: ERROR: impossible to W2003 server from backup because of the error in VMDK backup!

  2013-05-25 21:09 - info: # final status: ERROR: No. VMs saved! ######

  2013-05-25 21:09 - info: = ghettoVCB JOURNAL END =.

  / vmfs/volumes/519fceb8-3d39150e-2D0F-001999eeb339/ghettoVCB-Master #.

  > However, when I start to create a backup, the process would end with an error :-(

  This is not correct.  Depending on your position, you've got to 66%, until he ended with an error.

  I have the same problem. In my case, I make a virtual disk full and mount it with Server 2003 for project a NFS volume.  I use GhettoVCB, as you do.  It uses the standard vkmfstools in the script to make the clone/backup.  I have proven that the problem also occurs when you use the command line vkmfstools.  GhettoVCB has the bad habit of you cache the error code.  The error code is he ran out of disk space, which we both did not happen.  Once the problem occurs, the only way I could fix is to delete the virtual disk and start over, however, the problem will come back.  The problem didn't surface until what I moved to ESXi 4.0 5.1 on the servers.  Through this process, the hardware off the VMS version did not change, nor dare, because I may need to take 5.1 and back to 4.x.

• Vmfs only store data on two physical disks on ESXi host?

  I have an ESXi host with one disk of 250 GB and you want to add another disk of 250 GB to the host.  Is it possible to have two discs in the Act on the host as data store single vmfs?  This is a test machine and there is no shared storage (nfs, LUNs, etc.) available.  Can I add a measure after adding the second drive to the host?

  Thank you

  Ken

  Yes it is possible and it's called covering vmfs. However this is not recommended as any failure on one of the disc would render the whole vmfs unusable.

• Creating models of disks in ESXi differentiation

  I am to evaluate ESXi 4.1 (I do not have access to the software) and would like to know if there is an equivalent to the disks feature in Hyper-V of differentiation. I would like a situation where I could add components such as databases or service packs to an operating system image base required as described here: http://technet.microsoft.com/en-us/l...8WS.10%29.aspx to create VMS with configs quickly and easily.

  I'm having difficulty to find how to create templates in ESX (i) can someone direct me to a how-to guide-(je comprends que vous pouvez faire cela dans vCenter)? Is this possible in the free version of ESXi?

  You are referring to a feature called instant.  If you right click on prompt, you will see the opportunity to take a snapshot, but also to manage your photos. Keep in mind that this is not a replacement for backups and snapshots of the guest only OS should be left active for the very short period of time.

  However, you will also like the function of related clones that can be found within the VDI and used in VMware View, with the help of View Composer.

  http://KB.VMware.com/kb/1015180

  Regarding the creation of a model, it is a feature of vCenter.  You will need to download an evaluation version, add your vCenter ESXi host, and then you can create a template.

• How to align data disks VMs ESXi

  Is there a way to align the ESXi VMs data (not C) disks that already have data on them without before you wipe them? A kind of ' align live. "

  If you have a NetAPP file server, you can use their tool: mbralign.

  Check if your provider of storage offers a better document practice about done (at least EMC and NetAPP) alignment.

  Read this document, it contains instructions on how to get an alignment for Windows and Linux to its customers: http://www.vmware.com/pdf/esx3_partition_align.pdf

  Microsoft offers several document and a few tools. Go to their site and search for "align the partition.

  AWo

  VCP 3 & 4

  Author @ vmwire.net

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• Tracking Disk use ESXi comments

  I'm sure this has been covered a dozen times, but I can't seem to find much on the subject by searching on the forum. I have an ESXi host with 5 clients running different flavors of windows server. Some of the guests have several virtual disks and some have only one. My question is, are there free utilities to monitor the free space on the prompt "hard disks"? I was all over the place trying to find something suitable. I have the free Veeam followed by tool and VMexplorer of Tri-plomb. None of these have the ability to monitor the disk space of comments. I'm not running Vcenter or one of those things, I have a server and use the VI client to manage. Any suggestions or nudges in the right direction will be appreciated.

  Maybe something like RVTools, but it will not attract attention.

• Using free space on the disk in ESXi 4 USB Installer?

  Hi all

  I've got 16 Stick of 2 GB USB DRIVE that I installed with VMWare ESXi 4.0 and the patch for later, someone has already tried to use the remaining free disk space, or it can not be used at all?

  I'm just curious, and I was wondering if we can optimize.

  Thank you.

  Kind regards

  AWT

  One of the reasons for esxi works well on a USB key is that she is not much written and that he didn't need to do much. Take the 16 GB House and a small for ESXi. Don't risk your production environment.

• Latency of disk queue

  Question about queue of disk latency. What are the acceptable numbers for the latency of writing, reading and command queue on the ESX host. I'm trying to figure out high that they can before guest virtual machines disk i/o is impacted.

  You might be interested in this document. Associated with Figure 4, she suggests that 50 ms of latency may start to affect latency sensitive applications.

  http://www.VMware.com/files/PDF/scalable_storage_performance.PDF

• How big can be a virtual HARD disk in ESXi 3.5?

  I just tried to create a virtual disk of 300 GB and had an error on the file being too large for the disk. I have 500 GB free in my data store, so that's not all.

  Is there a way to define ESXi to split the drive into 2GB pieces, or to not award the entire disk at once, as in VMWare Workstation?

  Thank you.

  Corey Crawford

  Not in this version of ESX.  What you need to do, is to clear all of the LUN, so you can blow the LUN and recreate with the block size you need, which should in this case be not 2 MB.

  Steve

• Best way to set up 6 1 TB SATA disks for ESXi performance than

  Hi, the ESXi server must run a large number of different virtual machines at the same time and trying to figure out the best way to install the drives.

  Should I configure RAID 10 and use to install ESXI and VMs.

  A mirror then the other two for the swap file.

  or

  RAID configuration 10 for ESXI and VMs and then use the other two as JBOD drives and distributed the files for the exchange between these two drives?

  You can probably do so because of SATA for some time provided you get the hardware RAID with a BBWC map.

  If you are using a sata controller not expensive or one without the same dough RAID 10 is going to be pretty useless after about 4 VM.

  I build and run on the controllers to the House and it just was not worth the power used to run the commands, even in RAID 10.

  Ended up buying the battery off ebay for $150 and then it was usable...

• Capacity of the hard disk on ESXi 4.0

  Hello

  what capacity can manage ESXi 4.0? I thought I read something abaut 2 TB? is that correct?

  Max 256 LUNS with max 2 TB each LUN.

  André

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