Rescan SAN?

[Algernon]

How do I do this:

/usr/sbin/cos-rescan.sh vmhba1

on an ESX 3.0.1 server?

I'll tell you what I am trying to do as well. Storage guys have presented 7 LUNs to me. 2 of my hosts are 3.0.1 and 4 of them are 2.5.3. I want to format the new LUNs as vmfs3. I used to just go into the MUI and refresh storage, see the new LUNs and format them through there...How is this done under 3.0.1 / VC 2.0.1?

[christianZ]

Just

esxcfg-rescan vmhba1

[Algernon]

So I can run esxcfg-rescan vmhba1 and see the new luns

I run:

vmkpcidivy -q vmhba_devs

and see the extra LUNs, but one number is missing for the vmkfstools syntax, I see:

vmhba1:0:24 /dev/sdad

But the syntax for vmkfstools needs and extra number. I assume that this is the number of the volume/partition, but I'm basing this on an antiquated knowledge of ARC paths. At any rate, my attempt to format and label this storage fails:

\[root@abvmw014 root]# vmkfstools -S farm02_temp05 -C vmfs3 vmhba1:0:24:1

Creating file system on "vmhba1:0:24:1" with blockSize 1048576 and volume label "farm02_temp05".

Usage: vmkfstools -C vmfs3 /vmfs/devices/disks/vmhbaW:X:Y:Z

Error: Bad file descriptor

[admin]

Or use the VI client, click a host that can see the LUN, click the configuration tab, click storage adapters and then click rescan in the top left. This will rescan all adapters.

[christianZ · Accepted solution]

then go to (with your VI Client)

VC / host / Configuration / Storage / Add Storage

[Algernon]

Thanks guys, that's got it.

[christianZ]

ok, to do this manually you must first create a partition

\- fdisk /dev/sd?

\- partition type change to "fb"

and now "vmkfstools ..."

[kenton_allred]

I'm trying to do this manually the way you outline but how do I know which /dev/sd? I should format using fdisk?

The LUN I want to format is /vmfs/devices/disks/vmhba0:0:6:0

Also, I'm not sure I understand the "...partition type change to "fb"..." comment.

Can you clarify this for me please?