esx reservation error scsi reservation conflict Bob White West Virginia

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esx reservation error scsi reservation conflict Bob White, West Virginia

Status=SCSI reservation conflict 2012-04-29T14:39:53.082Z cpu17:4278)VMW_SATP_SVC: satp_svc_UpdatePath:213: Failed to update path "vmhba1:C0:T1:L2" state. Valerian Crasto January 19th, 2011Valerian Crasto(Quote) at 05:21Valerian Crasto(Quote) | #2 Reply | Quote Hi, i have small question. 1.) what is the difference between # esxcfg-info -s | egrep -B16 esx-esxhost2.local-2012-04-30-14.52/var/run/log/vmkernel.1:2012-04-29T14:39:38.866Z cpu20:1675016)NMP: nmp_PathDetermineFailure:2084: SCSI cmd RESERVE failed on path vmhba0:C0:T2:L2, reservation state on device naa.60050768018900725000000000000672 is unknown. Also, based on the ESX hosts logs and the SVC logs, we would postulate that the SVC advertised its paths as online and active before it had fully logged into the

The ESX host will then try releasing the lock. We have experienced the exact same issue twice now, however, we are using FC and NetApp. 5 ESX hosts,... Though only 3 has reported but other two ESX host are also not able to see the lun. Some data Stolen from : Troubleshooting SCSI Reservation failures on Virtual Infrastructure 3 and 3.5 Some unanswered question: This bring other question into my mind, so even if you have

Incapsula incident ID: 474000010582985852-1336013572464574489 skip to main | skip to sidebar About Roy Monday, December 14, 2009 Deep Dive Into SCSI Reservation First I will talk about the problem and Do not schedule backups ( vcb or console based ) in parallel from the same LUN. 5. a Snapshot file or a thin provisioned Virtual Disk) When the VMkernel requests a SCSI Reservation of a LUN from the storage array, it attempts the metadata updates of the VMFS ya i got what i was looking for....nice explannation July 12, 2011 at 4:13 PM Mohammed Raffic said...

A non-disruptive upgrade sequence involves taking one array controller offline, apply firmware update, bring controller online, and then apply the same sequence to the other controller. If however another application running from the Service Console is using the lun, it can immediately reclaim the "lun" or place another "reservation". Incapsula incident ID: 474000010582985852-528866755143663638 Request unsuccessful. esx-esxhost4.local-2012-04-30-14.37/var/run/log/vmkernel.1:2012-04-29T14:39:00.633Z cpu17:4113)NMP: nmp_PathDetermineFailure:2084: SCSI cmd RESERVE failed on path vmhba1:C0:T3:L7, reservation state on device naa.6005076801890072500000000000061e is unknown.

Deep Dive Into SCSI Reservation NFS: 898: RPC error 13 (RPC was aborted due to tim... I then found that target IP were of vswif (Virtual interface on NetAPP filer to all physical NIC are tied for fault tolerance and redundancy ). Please leave us a reply if the solution has worked for you Recent Commentsreza abdi on VMware: Upgrade vCenter Server 5.5 to 6.0Mahesh on VMware: Add PortGroup to all hosts in Now it is time to apply the firmware update to the second IBM SVC: 2012-04-29T14:21:23.073Z cpu20:4778)<3> rport-5:0-5: blocked FC remote port time out: saving binding 2012-04-29T14:21:23.074Z cpu20:4794)<3>lpfc820 0000:04:00.0: 0:(0):0203 Devloss timeout

QUICK LINKS Register for VMworld US Hotel & Travel Europe Hotel & Travel US FAQs Europe FAQs VMWORLD SESSIONS US Content Catalog Europe Content Catalog Session Playbacks JOIN OUR COMMUNITIES Facebook This week Nathan Small (Twitter handle: vSphereStorage) takes us through the determination of root cause for a SCSI Reservation Conflict issue: History of issue: Customer performed a firmware upgrade to their What targets are being used to access luns. 6. After it came online fast and I then added correct target IP .

esx-esxhost4.local-2012-04-30-14.37/var/run/log/vmkernel.1:2012-04-29T14:39:41.633Z cpu5:4101)NMP: nmp_PathDetermineFailure:2084: SCSI cmd RESERVE failed on path vmhba1:C0:T1:L14, reservation state on device naa.6005076801890072500000000000083b is unknown. SCSI reservations are needed to prevent any data corruption in environment where LUNs are shared between many hosts. Current Time at my Home PAGE HIT Home About VMpros Home Lab Scripts Maximums Logins Database Disclaimer Home > VMware > VMware: SCSI reservation conflicts VMware: SCSI reservation conflicts December 23rd, Contact your SAN vendor for information on SP timeout values and performance settings and storage array firmware.. 9.

After rebooting ESX host I saw following messages into the console After rebooting ESX host it was not able to come back online. Resolution: The solution to this issue is to avoid the monolithic one or two large LUN approach when you build your logical storage architecture. The Service Console regularly monitors the luns and checks for an "reservations" that have aged to old. Environment details:IBM Bladecenter with LS20 blades, QLogic QLA2xxx 2gb adaptersBrocade fiber switch moduleConnected to IBM SAN Volume Controller (SVC) ver SVC Global Mirror to another site10 Nodes running ESX 3.5.0

Note:- we have VMware ESX 4.0. The firmware update is applied, controller is rebooted, and then brought back online. 16 minutes later we observe LUN resets for all paths/LUN on the controller that was brought down for Avoid using snapshots as this causes a lot of scsi reservations. 4. Sander has over 10 years experience in IT, primary focus: virtualization, storage and SBCMore Posts - Website Follow Me: Categories: VMware Tags: ACU, Conflict, Datastore, ESX 3.5, HBA, HP, LUN, MSA1500,

A clustered server attempting to write a LUN will get a "lock" on the LUN unless some other server already has the lock. Since it being production scenario, I decided not to waste time and contact VMware for possible solution. Checking the VMkering log file: tail -f /var/log/vmkernel [Dec 21 10:44:25 esxmeri01 vmkernel: 0:19:06:51.306 cpu3:1037)WARNING: SCSI: 119: Failing I/O due to too many reservation conflicts Dec 21 10:44:25 esxmeri01 vmkernel: 0:19:06:51.306 For more information on NMP host statuses, See KB 1029039.

This means that the other two paths to this LUN can still be used for access. This is just to spread knowledge and has nothing to do with credit. After some troubleshooting and trying to get my datastores online I found some information to point me in the right direction: cd /var/log # cat dmesg resize_dma_pool: unknown device type Now it’s time to do the LUN reset : vmkfstools -lock lunreset /vmfs/devices/disks/vml.0200060000600508b3009389c0df3c8fe88b3e001c4d534120564f I did a rescan on my HBA (each server) and voila… the datastores are back online again:

Avatars by Sterling Adventures RSS Twitter Sponsor: Veeam Sponsor: ArCycle Solution? Command may fail 5. let’s troubleshoot: Checking for active paths: esxcfg-mpath -l | grep -i active FC 6:2.1 210100e08bb27a58<->500508b30091aac9 vmhba1:0:2 On active preferred FC 6:2.1 210100e08bb27a58<->500508b30091aac9 vmhba1:0:6 On active preferred Local 70:0.0 vmhba2:0:0 On Areas of scsi reservation contention -- 3rd party software (agents) -- firmware on SAN SP/HBA -- pathing -- Heavy I/O Therefore the way to mitigate the negative impact of scsi reservations

No prior reservation exists on the device. LUNS removed from the system without rescanning can appear as locked.