Hi
Check if the following VMware KB article helps:VMware Knowledge Base
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Re: Datastores disappeared after a reboot
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Re: Datastores disappeared after a reboot
One of the first things I tried.
vmkernel.log output when rescanning:
2019-04-07T19:11:25.957Z cpu3:38976)VC: 2059: Device rescan time 16 msec (total number of devices 6)
2019-04-07T19:11:25.957Z cpu3:38976)VC: 2062: Filesystem probe time 59 msec (devices probed 6 of 6)
2019-04-07T19:11:25.957Z cpu3:38976)VC: 2064: Refresh open volume time 0 msec
...
2019-04-07T19:15:06.493Z cpu2:32791)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x1a (0x412e8081b380, 0) to dev "mpx.vmhba32:C0:T0:L0" on path "vmhba32:C0:T0:L0" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x24 0x0. Act:NONE
2019-04-07T19:15:06.493Z cpu2:32791)ScsiDeviceIO: 2338: Cmd(0x412e8081b380) 0x1a, CmdSN 0x418 from world 0 to dev "mpx.vmhba32:C0:T0:L0" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x24 0x0.
...
2019-04-07T19:16:27.080Z cpu6:34890)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x85 (0x412e8081db80, 34362) to dev "naa.600605b009617b801cfe4186271b7c33" on path "vmhba2:C2:T1:L0" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x20 0x0. Act:NONE
2019-04-07T19:16:27.080Z cpu6:34890)ScsiDeviceIO: 2338: Cmd(0x412e8081db80) 0x85, CmdSN 0x6 from world 34362 to dev "naa.600605b009617b801cfe4186271b7c33" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x20 0x0.
2019-04-07T19:16:27.080Z cpu6:34890)ScsiDeviceIO: 2338: Cmd(0x412e8081db80) 0x4d, CmdSN 0x7 from world 34362 to dev "naa.600605b009617b801cfe4186271b7c33" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x20 0x0.
2019-04-07T19:16:27.081Z cpu6:34890)ScsiDeviceIO: 2338: Cmd(0x412e8081db80) 0x1a, CmdSN 0x8 from world 34362 to dev "naa.600605b009617b801cfe4186271b7c33" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x24 0x0.
2019-04-07T19:16:27.083Z cpu6:32795)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x85 (0x412e8081db80, 34362) to dev "naa.600605b009617b801cfe4186271b2743" on path "vmhba2:C2:T0:L0" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x20 0x0. Act:NONE
2019-04-07T19:16:27.083Z cpu6:32795)ScsiDeviceIO: 2338: Cmd(0x412e8081db80) 0x85, CmdSN 0x9 from world 34362 to dev "naa.600605b009617b801cfe4186271b2743" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x20 0x0.
2019-04-07T19:16:27.083Z cpu6:32795)ScsiDeviceIO: 2338: Cmd(0x412e8081db80) 0x4d, CmdSN 0xa from world 34362 to dev "naa.600605b009617b801cfe4186271b2743" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x20 0x0.
2019-04-07T19:16:27.083Z cpu6:32795)ScsiDeviceIO: 2338: Cmd(0x412e8081db80) 0x1a, CmdSN 0xb from world 34362 to dev "naa.600605b009617b801cfe4186271b2743" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x24 0x0.
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Datastores disappeared after a reboot
Guys,
Had to shut down the host to put more memory in. The new memory is detected fine, but both my datastores disappeared, so I can't bring the VMs back online.
Can't figure out why this happened or how to fix it.
ESXi v5.5. Running off USB (mpx.vmhba32:C0:T0:L0)
Terminal outputs:
# esxcfg-scsidevs -c
Device UID Device Type Console Device Size Multipath PluginDisplay Name
mpx.vmhba32:C0:T0:L0 Direct-Access /vmfs/devices/disks/mpx.vmhba32:C0:T0:L0 1911MB NMP Local USB Direct-Access (mpx.vmhba32:C0:T0:L0)
naa.600605b009617b801cfe4186271b2743 Direct-Access /vmfs/devices/disks/naa.600605b009617b801cfe4186271b2743 1907200MB NMP Local LSI Disk (naa.600605b009617b801cfe4186271b2743)
naa.600605b009617b801cfe4186271b7c33 Direct-Access /vmfs/devices/disks/naa.600605b009617b801cfe4186271b7c33 2861056MB NMP Local LSI Disk (naa.600605b009617b801cfe4186271b7c33)
# partedUtil getptbl /vmfs/devices/disks/naa.600605b009617b801cfe4186271b2743
gpt
243133 255 63 3905945600
1 2048 3905945566 AA31E02A400F11DB9590000C2911D1B8 vmfs 0
# partedUtil getptbl /vmfs/devices/disks/naa.600605b009617b801cfe4186271b7c33
gpt
364733 255 63 5859442688
1 2048 5859442654 AA31E02A400F11DB9590000C2911D1B8 vmfs 0
Edit:
Things attempted so far:
VMware Knowledge Base - Recreating a missing VMFS datastore partition in VMware vSphere 5.x and 6.x (2046610)
VMware Knowledge Base - LUN suddenly becomes unavailable to one or more ESXi/ESX hosts and LUN needs to be reset (1000044)
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Re: Datastores disappeared after a reboot
Do you can sharing vmkernel.log and hosts.log with the date next to reboot?
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Re: Host reboot and IP addresses are lost
Marod, i share the same grief with you. It is confirmed by Nimble the issue has been identified and they will release NCM 6.1 soon (in 1 or 2 months).
At this time being, I just removed the USB and luckily enough there is an SD card slot near that USB area on DL 360 Gen10 and put the SD card inside SD card slot.
It been working with NCM since then.
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Re: Deploy Error : A required disk image was missing.
Check OVA or VMX files for hardware configuration and find out either your server is compatible with the required VM configuration.
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Re: Host reboot and IP addresses are lost
please done latest firmware excluding NIC.
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Re: Essentials License - add more than 3 hosts temporarily
Thanks for your input guys, I will attempt to temporarily re-license vCenter and then downgrade again when done.
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vSphere CPU scheduling vs KVM
I know there are differences \ advantages in the way vSphere handles memory in comparison to KVM and I have seem some white papers on it, but what about CPU scheduling? Are they any performance advantages? Please reply by sharing some links to good resources if you can. I don't see much published around this and I want to understand why.
Does VMware have any patents around its CPU scheduler?
Does VMware simply leverage the standard linux scheduler?
Does VMware have any advantage over KVM in the area of CPU scheduling?
I am working for an organization that wants to replace VMware, and before it solidifies this path it wants to fully understand all the details.
Thanks
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Re: Datastores disappeared after a reboot
From the first one of the two KB articles you mentioned in your initial post, did you run vmkfstools -V (step 5), and then check the vmkernel.log for related entries?
André
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How to show historic Write/Read Latency on Virtual Disks?
VMware ESXi, 6.0.0
As attached, I am trying to find Read Latency (or Write Latency) via Performance --> Advanced tab. It can show me some other historic metrics but not Read/Write latency. Latency on real-time seems okay, but not historic data. It tells me: No performance data is available for the currently selected metrics
Can you please tell me if I can do that, or explain to me on why?
Thanks!
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Re: How to show historic Write/Read Latency on Virtual Disks?
Assuming this is from vcenter, since esxi its self doesn't keep historical metrics, you need to increase the statistics level for your long term statistics
Configure Statistics Collection Intervals in the vSphere Web Client
IF you look at the link that mentions what is level tracks what, you need 2 to get the metrics you want, and the default is 1 beyond a day I think. Its suggested to increase these as long as you need to troubleshoot issues as this increases the resources needed for statistics collection, including disk space.
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Re: How to show historic Write/Read Latency on Virtual Disks?
You have to inrease the Stats Level (1-4)in the vCenter Settings -> Statistics to collect more metrics for a longer period of time with vcenter. Another solution wil be the use of vRealize Operations Manager(but maybe a little bit pricy). Do you have VeeamOne around?
Regards
Joerg
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Re: cannot find vsphere HA master agent
@StephenMoll
I can check the connectivity among hosts.
Thanks
Jeff
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Re: cannot find vsphere HA master agent
@Diego
I did disable/enable the HA feature but didn't help.
Thanks
Jeff
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Re: Deploy Error : A required disk image was missing.
as soon as i read this it made sense. third export is the charm
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Re: unable to unmount/delete datastore
I tried both
[] /tmp/scratch
[] /tmp
but it didn't work. If I select erase partition since there's no files needed on this storage, Will it break the RAID and have to redo?
Thanks
Jeff
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Re: cannot find vsphere HA master agent
Issue has been resolved. I went to the hosts vmkernel port settings and for some reason vsan wasn't checked. Only management is checked. So after I ticked vsan for both hosts vmkernel, it went away and it's now connected.
Thanks for all inputs
Jeff
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Re: unable to unmount/delete datastore
I tried
/tmp/scratch
and made sure that these 2 folders are present. So I tried editing both
ScratchConfig.ConfiguredScratchLocation
ScratchConfig.CurrentScratchLocation
/tmp/scratch/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx --> datastore
I also tried
[]tmp/scratch/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
but still didn't work
Thanks
Jeff
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Re: unable to unmount/delete datastore
So I tried to change the path of both ScratchConfigs, it shows me
I also tried one ScratchConfig at a time.
Thanks
Jeff
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