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20-1.5=12 ?
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20-1.5=12 ?

LAKidLAKid Member
edited April 2013 in General

Would somebody explain how in the world using 1.5G out of 20G HD becomes 12G available?

[root@ccc ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/simfs 20G 1.5G 12G 12% /
none 256M 4.0K 256M 1% /dev

«1

Comments

  • Awmusic12635Awmusic12635 Member, Host Rep

    Doesn't that typically mean the host node disk is oversold and doesn't have enough space available?

  • Yes, exactly. The host node's /vz partition is full.

  • LAKidLAKid Member

    I thought so, but since they don't answer, I just want some common sense out it.

  • JacobJacob Member

    Lol, It's pretty terrible how a node can run out of disk, drives are so cheap these days...

  • bnmklbnmkl Member

    Host ?

  • LAKidLAKid Member

    @bnmkl don't want to embarrass them.

  • bnmklbnmkl Member

    image

  • netomxnetomx Moderator, Veteran

    @LAKid we need to know!

  • @LAKid tell us!

  • WebProjectWebProject Host Rep, Veteran

    this is a new maths :)

    @Fliphost said: Doesn't that typically mean the host node disk is oversold and doesn't have enough space available?

    wow, I never seen that hdd can be oversold on VPS, normally on shared hosting.

  • LAKidLAKid Member

    @netomx @Dragoon0309 came from Out of Space.

  • jhjh Member

    @WebProject said: this is a new maths :)

    It's the idea that counts

  • @LAKid said: came from Out of Space.

    maybe form aliens

  • DomainBopDomainBop Member
    edited April 2013

    Doesn't that typically mean the host node disk is oversold and doesn't have enough space available?

    Yes.

    The worst case of disk overselling I've seen was at Host Slim where the disk size shown by df -h was almost always much less than my 200GB plan (size shown by df -h would vary from 60GB-200GB, and with only 4GB used the available amount would vary from 0GB-100GB...the day it hit 0GB available the entire node crashed minutes later)

    don't want to embarrass them.

    If they're overselling to such an extent that users are not able to use the disk space that is advertised in the plan then it would be a public service to name them so the rest of us would know to avoid them.

  • LAKidLAKid Member

    @DomainBop Already told who they are..:)

  • netomxnetomx Moderator, Veteran

    @jcaleb said: maybe form aliens

    oh, i thought it was the end of ... what is called? reality? good to know who is

  • Regolith Media?!?!?

    image

  • emmm warp1 plan from alienvps?

  • ooo openvz.

    never use them.

  • raindog308raindog308 Administrator, Veteran

    @LAKid said: Would somebody explain how in the world using 1.5G out of 20G HD becomes 12G available?

    How can you resist creating a 19G file?

  • AndreAndre Member

    @raindog308 said: resist creating a 19G file?

    18.5

  • @raindog308 said: How can you resist creating a 19G fiIle

    Solve the puzzle... Watch the magic...

  • Even DireVPS is not like this

  • LAKidLAKid Member

    Now it's 20 - 1.5 = 11

  • @raindog308 said: How can you resist creating a 19G file?

    I'd have done that right away ;-)

  • I'm also confuse. This is from BuyVM Storage-250GB

    Filesystem            Size  Used Avail Use% Mounted on
    /dev/vda1             246G  1.1G  233G   1% /
    tmpfs                 125M     0  125M   0% /lib/init/rw
    udev                  121M  116K  120M   1% /dev
    tmpfs                 125M     0  125M   0% /dev/shm
    

    image

  • LAKidLAKid Member

    @budingyun your math is similar to mine...so funny..:)

  • @budingyun said: I'm also confuse. This is from BuyVM Storage-250GB

    should not be the case because its kvm right?

  • budingyunbudingyun Member
    edited April 2013

    @LAKid said: your math is similar to mine...so funny..:)

    In the same boat. Haha.

    @jcaleb said: should not be the case because its kvm right?

    Iperweb KVMSSD2 with 8GB storage

    Filesystem            Size  Used Avail Use% Mounted on
    /dev/vda1             7.6G  1.2G  6.0G  17% /
    tmpfs                 123M     0  123M   0% /lib/init/rw
    udev                  118M  120K  118M   1% /dev
    tmpfs                 123M     0  123M   0% /dev/shm
    

    This one look normal but still 7.6 -1.2 = 6.4. Maybe kvm does have overhead?

  • @budingyun this is normal. Linux reserves for root (hides) some of the space of the filesystem, by default 5%.
    So you really have the space, it's just not shown on df. At least this is the case when you have a real virtual machine (like XEN or KVM). On OVZ it's all different.

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