1748146 Members
3749 Online
108758 Solutions
New Discussion юеВ

Re: Disk Array

 
Bill McNAMARA_1
Honored Contributor

Re: Disk Array

Good, this has changed the LUN description field.
DGC C2300WDR5
^^^^^^ R5

12 Disk RAID 5 is not a great idea on a Nike20

try a five disk raid five.

The NO_HW is not a problem now as there is no LUN 1

The Lun 0 shows up claimed as it should.

When the R5 lun is built,
Enable Caching from the
GridM> Controller Changes

You may need to enter into FE mode..
Ctrl P then hold Shift FE enter at the presentation screen.

Enable caching on the lun, make sure that when you bound the LUN that you selected caching for the LUN too.
It's off by default.

After this is done, Reset the Controller from the Controller Changes menu
(not sure if it'll be possible with your f/w - if not, just reset the OTHER SP... ie power cycle it.)
Any caching changes are not taken into account unless the TWO SPs are reset. The config (and firmware lives on the disks)



Now, from your ioscan output,
I only see ONE SP.
The one on
8/4.0
(this is a K ?)

The other one I presume is on the same bus?

I don't see it in the ioscan:


You cabling looks like?
see diag attached



It works for me (tm)
Bill McNAMARA_1
Honored Contributor

Re: Disk Array

decode dimm panic to specific DIMM:
It works for me (tm)
Bill McNAMARA_1
Honored Contributor

Re: Disk Array

When in FE mode, check the error logs (UEL) and post it up here.

It will explain the fault.

Do the same on SPB via Gridmanager too.

Later,

Bill
It works for me (tm)
Bill McNAMARA_1
Honored Contributor

Re: Disk Array

any update?

Bill
It works for me (tm)
shaikh_mahaboob
Frequent Advisor

Re: Disk Array

hi
Still i am i working on LUNs only

as u said when the R% LUN is built
Enable caching from grid mger controler. but ther eis not tab called controler changes can u tell me how to enter.

Thanks

Shaikh
Exchange
Bill McNAMARA_1
Honored Contributor

Re: Disk Array

From the presentation menu, go to the main menu,
Shift 6 (^)
If I recall
then
Ctrl P, hold shift then f then e then release shift then enter
You should see an FE show up in the top right hand corner
then
5 from the main menu
3 from the next


To go back to normal user (not fe)

Ctrl P,
shift
u
s
e
r
enter
It works for me (tm)
shaikh_mahaboob
Frequent Advisor

Re: Disk Array

hi

Sorry i am not getting anything , just now i restarted Diskarry now i will create Volume group and lv also then file system.

if u can help me how to change caching very help full to me

Thanks

Shaikh Mahaboob
Exchange
shaikh_mahaboob
Frequent Advisor

Re: Disk Array

hi

now i am creating Two LUN each 6 disk R5

thanks

Shaikh
Exchange
Bill McNAMARA_1
Honored Contributor

Re: Disk Array

if you follow the links I posted above you'll understand that 5 disk R5 is the best.

With the 12 disks you have you should create
2 5 disk R5
and
1 2 disk R1
this way:

A0 B0 C0 D0 E0 = R5 (top left)

A2 B2 C2 D2 E2 = R5 (top right)

A1 B1 = R1 (bottom left)


No Hot Spare

Later,
Bill


It works for me (tm)
shaikh_mahaboob
Frequent Advisor

Re: Disk Array

hi

But i started binding LUN with 6 disk each
A0,B0,C0,D0,E0,A2,
B2,C2,D2,E2,A1,B1,

with Raid 5

shall i stop it now

Thanks

Shaikh
Exchange