disk plugged in a DS2300 not viewed

[Xavier BLANC]

hello I have this problem :
a ds2300 working fine with two sets of 4 disks RAID 1.
the bus is split in two buses ( dip 1&2 on)
So this is how my disks a pluged :
0 1 2 3 4 5 6 8 9 10 11 12 13 14
x x x x x x x x

Now I want to plug one new disk A7286A 73Gb to add more space for archieving.
Not seeing anything about SCSII ID on the disk and on the "lpg29283.pdf" doc
I tried slot 4
ioscan -fnC disk doesnt show the new disk
so i run insf -e nothing appear
After I try slot 12 same prob.
Please could someone tell me what I'm missing I've big doubt's about SCSII ID how can i find them ?
Best regards

then 12.

[Luk Vandenbussche · Accepted solution]

Hi,

I suppose the disk starts properly? Green LED on.

There are disks in slot 0,1,2,3,4,5,6,8?

How can you try slot 4 if it is in use??

[Xavier BLANC]

Thank,

>I suppose the disk starts properly? Green LED on.
Yes

>There are disks in slot 0,1,2,3,4,5,6,8?
>How can you try slot 4 if it is in use??

Sorry the text doesn't look what I type.
understand : 0 1 2 3 & 8 9 10 11

[Duncan Edmonstone]

How SCSI IDs are assigned is described in the user guide - have you looked at this?

http://h200001.www2.hp.com/bc/docs/support/SupportManual/lpg29283/lpg29283.pdf

[Luk Vandenbussche]

With this setup (in slot 4 or 12) it should work properly.

I had such an issue an a new A7286A 2 months ago. It was a defective HD. I called HP to replace it, two hours later i had a new disk yet.

[Xavier BLANC]

Thanks
In fact I understand how ds2300 assign ID's, but not disks, and I was wonderring If I need to set a secret ;) jumper on the disk for example.

Another doubt was : Is the ds2300 able to detect one disk alone, as the rest is configure in raid 1 mode.
thank for your reply

hum If the disk fail, the led shoud be amber, no ?

[Luk Vandenbussche]

Is your DS2300 connected to a HW raid controller or is it RAID-1 through mirror/UX?

It can be green also if the disk is not 100 % OK

[Xavier BLANC]

>Is your DS2300 connected to a HW raid controller or is it RAID-1 through mirror/UX?

Not sure it is a customer machine and I only can telnet it for the moment. but
I'm quite sure the internal disk are mirrorUX (sam show 2 phys devices) and ds2300 HW raid .
I have 4 HW path for 8 disks with ioscan:
disk 5 0/10/0/1.0.0.0 sdisk CLAIMED DEVICE I2O RAID1 /dev/dsk/c4t0d0 ..
then 1.0.0.1, 1.0.0.2, 1.0.0.3,
any advice about HW raid ?

sound like I need to open a call !

[Luk Vandenbussche]

Can you show an ioscan -funC disk please

[Xavier BLANC]

Class I H/W Path Driver S/W State H/W Type Description
==========================================================================
disk 0 0/0/1/1.0.0 sdisk CLAIMED DEVICE HP 18.2GMAM3184MC
/dev/dsk/c1t0d0 /dev/rdsk/c1t0d0
disk 1 0/0/1/1.2.0 sdisk CLAIMED DEVICE HP 36.4GST336752LC
/dev/dsk/c1t2d0 /dev/rdsk/c1t2d0
disk 2 0/0/2/0.0.0 sdisk CLAIMED DEVICE HP 18.2GMAM3184MC
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
disk 3 0/0/2/0.2.0 sdisk CLAIMED DEVICE HP 36.4GMAM3367MC
/dev/dsk/c2t2d0 /dev/rdsk/c2t2d0
disk 4 0/0/2/1.2.0 sdisk CLAIMED DEVICE HP DVD-ROM 305
/dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
disk 5 0/10/0/1.0.0.0 sdisk CLAIMED DEVICE I2O RAID1
/dev/dsk/c4t0d0 /dev/rdsk/c4t0d0
disk 6 0/10/0/1.0.0.1 sdisk CLAIMED DEVICE I2O RAID1
/dev/dsk/c4t0d1 /dev/rdsk/c4t0d1
disk 7 0/10/0/1.0.0.2 sdisk CLAIMED DEVICE I2O RAID1
/dev/dsk/c4t0d2 /dev/rdsk/c4t0d2
disk 8 0/10/0/1.0.0.3 sdisk CLAIMED DEVICE I2O RAID1
/dev/dsk/c4t0d3 /dev/rdsk/c4t0d3

[Luk Vandenbussche]

Hi Xavier,

You have a raid 4SI adapter.

You find the configuration method in this manual

http://docs.hp.com/en/J6173-90007/J6173-90007.pdf

[Xavier BLANC]

Thank you luk.
Sorry to be late : when we unplug the disk, the ds2300 fail ...
so we had a big crash with a database and not a minute to read the forum.
I'm going to read this, and in the same time call the HP support. ;)

[Xavier BLANC]

Ok, now I'm less stupid I understand why th disk isn't detected under HPUX, I have to declare it on the HP4SI RAID controler. Now, I've read the doc but I did not clearly see what I want to do, so my config is :
HP4SI RAID controler with two links to the DS2300 split in two set of four disk ( RAID 1).

Is it possible ? (understand supported !) to add only one physical disk, then create a logical disk with the irm menu, and keep my current RAID config without changes.

Keep in mind that I dont want to change the raid ARRAY, I only need a new HPUX filesystem for archiving data, and keep on disk a set of data already saved on ultrium tape.