topic Re: System Manager show that the LUN size is full. in VMware Solutions Discussions

System Manager show that the LUN size is full.

TOBIAS1979 — Thu, 05 Jun 2025 06:29:59 GMT

I have a LUN that System Manger 2.0 show as 100.39% used. But when I look into the Disk Manager on the server I have 17.6GB free of 50GB how is that possible?

Rgds

Tobias

Re: System Manager show that the LUN size is full.

aborzenkov — Wed, 11 Apr 2012 07:01:51 GMT

You probably mean “volume”. System Manager has no way to know how full LUN is.

Showing output of “df -k” and “df -r” would be helpful.

Re: System Manager show that the LUN size is full.

TOBIAS1979 — Wed, 11 Apr 2012 07:06:53 GMT

No, I ment the LUN. It look like this, i ám a bit confused???

Re: System Manager show that the LUN size is full.

aborzenkov — Wed, 11 Apr 2012 07:12:04 GMT

OK, it probably displays what is known as “Occupied size” in CLI.

Once host writes block on LUN, block is allocated on NetApp and remains allocated for this LUN. If host now marks block as “free” block remains allocated for LUN from NetApp point of view. There is limited support for “space reclamation”, where host can tell NetApp to free unused blocks. On Windows you need SnapDrive to do it.

Re: System Manager show that the LUN size is full.

TOBIAS1979 — Wed, 11 Apr 2012 07:20:35 GMT

Is there any command so I can se the real size in the CLI?

Re: System Manager show that the LUN size is full.

aborzenkov — Wed, 11 Apr 2012 07:23:28 GMT

lun show -v and look for “Occupied size”. If it is no there, you have too old Data ONTAP version.

Re: System Manager show that the LUN size is full.

TOBIAS1979 — Thu, 12 Apr 2012 07:31:41 GMT

thanks

Rgds

Tobias

Re: System Manager show that the LUN size is full.

lacherejc — Wed, 16 May 2012 12:27:14 GMT

Hello,

i have the same issue but i have

ontap 7.3.6p5

Lun mapped with iscsi to esx 4.1

Windows VM on datastore.

My df output

C2> df -hr /vol/c2_vm_prod1

Filesystem total used avail reserved Mounted on

/vol/c2_vm_prod1/ 2457GB 1313GB 1143GB 0KB

/vol/c2_vm_prod1/ /vol/c2_vm_prod1/.snapshot 614GB 0KB 614GB 0KB /vol/c2_vm_prod1/.snapshot

C2> df -h /vol/c2_vm_prod1

Filesystem total used avail capacity Mounted on

/vol/c2_vm_prod1/ 2457GB 1313GB 1143GB 53%

/vol/c2_vm_prod1/ /vol/c2_vm_prod1/.snapshot 614GB 0KB 614GB 0% /vol/c2_vm_prod1/.snapshot

So on my system manager i have :

have you got an idea ?

Thanks