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Ramdisk is full, no space left on root

  • 1.  Ramdisk is full, no space left on root

    Posted Nov 02, 2017 03:34 PM

    it

    Hi all,

    I have been spending several days to figure out the issue, but I gave up and decided to ask the community to help me.

    So, there is a standard error: no space left on device

    vdf -h

    -----

    Ramdisk                   Size      Used Available Use% Mounted on

    root                       32M       32M        0B 100% --

    etc                        28M      324K       27M   1% --

    tmp                       192M       60K      191M   0% --

    hostdstats                303M        4M      298M   1% --

    I've deleted all logs in /var/log, it helped, but then, after several hours, the same issue come back.

    I've seen that /var/lib/sfcb/registration was about 30MB and moved some files related to LSI controller.

    So,

    /var # du -sh

    18.1M   .

    But it did not help at all.

    vdf -h

    -----

    Ramdisk                   Size      Used Available Use% Mounted on

    root                       32M       32M        0B 100% --

    etc                        28M      324K       27M   1% --

    tmp                       192M       60K      191M   0% --

    hostdstats                303M        4M      298M   1% --

    Guys, could you please help me to figure it out and describe what the issue is?

    Thank you for any help.



  • 2.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 03:40 PM

    From / do a du -sh * and find out which filesystem is consuming the majority of the space.



  • 3.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 03:46 PM

    Hi aphnissov,

    Here is an output of the command:

    du -sh *

    0       0

    4.0K    altbootbank

    122.4M  bin

    4.0K    bootbank

    296.0K  bootpart.gz

    19.9T   dev

    12.0M   etc

    176.2M  lib

    28.5M   lib64

    4.0K    locker

    116.0K  mbr

    33.3M   opt

    3.0M    proc

    4.0K    productLocker

    4.0K    sbin

    4.0K    scratch

    4.0K    store

    538.7M  tardisks

    4.0K    tardisks.noauto

    68.0K   tmp

    175.7M  usr

    18.1M   var

    4.7T    vmfs

    12.0K   vmimages

    4.0K    vmupgrade



  • 4.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 04:00 PM

    Also from / do a df -h and post the output.



  • 5.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 04:02 PM

    ~ # df -h

    Filesystem   Size   Used Available Use% Mounted on

    VMFS-5     556.8G 380.3G    176.4G  68% /vmfs/volumes/DS-2-SASR5

    VMFS-5     459.8G 450.4G      9.3G  98% /vmfs/volumes/DS-1-SATAR1

    VMFS-5       5.5T   3.9T      1.6T  71% /vmfs/volumes/DS-3-SATAR5

    vfat         4.0G   7.8M      4.0G   0% /vmfs/volumes/52503a3f-3cd0e176-d335-0025900000df

    vfat       249.7M 172.0M     77.7M  69% /vmfs/volumes/38ac0f7b-66d0957e-466d-f5900f1ac9f5

    vfat       249.7M 172.7M     77.0M  69% /vmfs/volumes/816b367d-043df0d7-be3d-c68ed45ff302

    vfat       285.8M 203.6M     82.2M  71% /vmfs/volumes/52503a26-7e96441c-ce45-0025900000df



  • 6.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 04:04 PM

    That appears to be fine. Post output of ls -lh /



  • 7.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 04:06 PM

    ls -lh /

    total 509

    -rw-r--r--    1 root     root           0 Sep 12 15:15 0

    lrwxrwxrwx    1 root     root          49 May 25 17:23 altbootbank -> /vmfs/volumes/816b367d-043df0d7-be3d-c68ed45ff302

    drwxr-xr-x    1 root     root         512 May 29 10:34 bin

    lrwxrwxrwx    1 root     root          49 May 25 17:23 bootbank -> /vmfs/volumes/38ac0f7b-66d0957e-466d-f5900f1ac9f5

    -r--r--r--    1 root     root      293.0K Mar 21  2017 bootpart.gz

    drwxr-xr-x    1 root     root         512 Nov  2 16:05 dev

    drwxr-xr-x    1 root     root         512 Nov  2 14:20 etc

    drwxr-xr-x    1 root     root         512 May 25 17:22 lib

    drwxr-xr-x    1 root     root         512 May 29 10:34 lib64

    lrwxrwxrwx    1 root     root           6 May 25 17:23 locker -> /store

    drwxr-xr-x    1 root     root         512 May 25 17:22 mbr

    drwxr-xr-x    1 root     root         512 Jun  2 14:27 opt

    drwxr-xr-x    1 root     root      128.0K Nov  2 16:05 proc

    lrwxrwxrwx    1 root     root          22 May 25 17:23 productLocker -> /locker/packages/5.5.0

    lrwxrwxrwx    1 root     root           4 Mar 21  2017 sbin -> /bin

    lrwxrwxrwx    1 root     root          49 May 25 17:23 scratch -> /vmfs/volumes/52503a3f-3cd0e176-d335-0025900000df

    lrwxrwxrwx    1 root     root          49 May 25 17:23 store -> /vmfs/volumes/52503a26-7e96441c-ce45-0025900000df

    drwxr-xr-x    1 root     root         512 Jun  2 14:27 tardisks

    drwxr-xr-x    1 root     root         512 May 25 17:22 tardisks.noauto

    drwxrwxrwt    1 root     root         512 Nov  2 16:01 tmp

    drwxr-xr-x    1 root     root         512 May 25 17:22 usr

    drwxr-xr-x    1 root     root         512 May 25 17:23 var

    drwxr-xr-x    1 root     root         512 May 25 17:22 vmfs

    drwxr-xr-x    1 root     root         512 May 25 17:22 vmimages

    lrwxrwxrwx    1 root     root          17 Mar 21  2017 vmupgrade -> /locker/vmupgrade



  • 8.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 04:05 PM

    Hi,

    Remove the unnecessary files from /var & temp folder.

    -Sachin



  • 9.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 04:11 PM

    Hi Sachin,

    I did.

    /tmp # du -sh

    52.0K   .

    /var # du -sh

    18.1M   .

    Most of disk space is in /var/lib/sfcb, but I am not sure if I can delete something.



  • 10.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 04:12 PM

    Show your version:  vmware -v



  • 11.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 04:13 PM

    vmware -v

    VMware ESXi 5.5.0 build-5230635



  • 12.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 04:16 PM

    Show output of /var filesystem:  du -sh /var/*



  • 13.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 05:01 PM

    du -sh /var/*

    4.0K    /var/core

    544.0K  /var/db

    17.0M   /var/lib

    8.0K    /var/lock

    132.0K  /var/log

    4.0K    /var/opt

    380.0K  /var/run

    20.0K   /var/spool

    4.0K    /var/tmp



  • 14.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 05:31 PM

    Strange. What hardware is this running? Can you post your vmkwarning.log file at /var/log? And check on your available inodes with stat -f / .



  • 15.  RE: Ramdisk is full, no space left on root

    Posted Nov 02, 2017 06:16 PM

    It is running on Supermicro server, X8DTL motherboard.

    The last update in the vmkwarning.log file was a half year ago. 

    stat -f /

      File: "/"

        ID: 100000000 Namelen: 127     Type: visorfs

    Block size: 4096

    Blocks: Total: 279975     Free: 132683     Available: 132683

    Inodes: Total: 524288     Free: 515563



  • 16.  RE: Ramdisk is full, no space left on root
    Best Answer

    Posted Nov 02, 2017 06:44 PM

    I'm thinking you should reboot this host to reset the root ramdisk as it may not be releasing space properly. Also, it's probably worth applying patch 11 that came out in mid-September as it fixes a number of issues.



  • 17.  RE: Ramdisk is full, no space left on root

    Posted Nov 07, 2017 01:04 PM

    We had a similar problem after upgrading some drivers the other day, but just on a few of our hosts.

    If you type; (on the host)

    "esxcli system visorfs ramdisk list"

    you can verify if the ramdisk is actually full.

    We spoke to vmware's support about this and the solution was actually just to reboot the host one more time, and the problem was gone.



  • 18.  RE: Ramdisk is full, no space left on root

    Posted Nov 08, 2017 11:50 AM

    Hi all,

    A reboot saved the day. So, the issue is solved. Also, I have updated the server to the latest ESXi version.

    Thanks for your help guys!