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  3. December 2015

RE: Need to create ASP2 to for testing SSD/HDD mixture

Interesting performance comparison for the 18 RSTLIBBRM on two different LPARS.

R&D LPAR - 2 hours 40 minutes.
8205, 1.0 CPU, 40gb mem, Dual 5913 controller, 24 571gb 10k spinney in EXP24S

Sandbox LPAR - 8 hours.
8205 .3 CPU, 8gb mem, CEC controller, 3 571gb 10k spinney in CEC.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Roberto José Etcheverry Romero
Sent: Tuesday, December 08, 2015 9:12 AM
To: Midrange Systems Technical Discussion
Subject: Re: Need to create ASP2 to for testing SSD/HDD mixture

Paul,

All ASPs will say "unprotected" unless protected by mirror, See that the Unprotected applies to the ASP itself but each drive is protected.

Best Regards,

Roberto

On Tue, Dec 8, 2015 at 11:04 AM, Steinmetz, Paul <PSteinmetz@xxxxxxxxxx>
wrote:

Larry,

1) On the " Display disk configuration status" why does the ASP
status show "Unprotected"

Display Disk Configuration Status

Serial Resource
Hot Spare
ASP Unit Number Type Model Name Status
Protection
1
Unprotected
1 Y010EA00CE3D 19B3 099 DMP048 RAID 5/Active N
2 Y010EA00CE3G 19B3 099 DMP002 RAID 5/Active N

2) Is there a green screen equivalent cmd to Ops Navigator New Disk
Pool Wizard?

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
DrFranken
Sent: Tuesday, December 08, 2015 8:35 AM
To: Midrange Systems Technical Discussion
Subject: Re: Need to create ASP2 to for testing SSD/HDD mixture

Actually you cannot do RAID on those at the guest level as there is no
'RAID' card available there.

You CAN do Mirror as that is done by IBM i. It's not recommended
though although I'll happily let you do it because I sell Disk. :-)
:-)

The only reason I can really think for doing this is if you have TWO
host partitions and you mirror all the disk on the guest partition to
both hosts. Since the disk will be RAID protected at a minimum at the
host level you're consuming a LOT of disk this way but you ARE
allowing for a failure of one host partition not to take you down.

- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 12/8/2015 8:21 AM, Steinmetz, Paul wrote:
Larry,

Since you mentioned virtual disks, should virtual disk also have
disk
protection, such as RAID-5?
If so, then these would be protected twice, once on the host and
also on
the quest.

I have a 2 small guest LPARs, only one virtual disk. In this
situation,
not enough disks for a parity set.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf
Of DrFranken
Sent: Tuesday, December 08, 2015 8:06 AM
To: Midrange Systems Technical Discussion
Subject: Re: Need to create ASP2 to for testing SSD/HDD mixture

Aha! Somehow I had the idea that these were virtual disks to a
hosted
partition. That not being the case you are of course correct!

- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 12/8/2015 1:16 AM, Steinmetz, Paul wrote:

Larry,

< Had you deleted those disk units from your host and the
re-created them the ADD would have taken just seconds. Of course
you would have spent the time creating them on your host partition
so pretty likely a wash there.>

My intention here, (not previously stated) was to remove disks from
the
ASP, without stopping parity, using the existing parity set.
To delete disks, I would have had to stop parity, which requires an
IPL
to DST.
After parity was deleted, disks could have been deleted.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf
Of DrFranken
Sent: Monday, December 07, 2015 8:18 PM
To: Midrange Systems Technical Discussion
Subject: Re: Need to create ASP2 to for testing SSD/HDD mixture

See comments in line.

- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 12/7/2015 5:48 PM, Steinmetz, Paul wrote:
Here are the processes I used to create and test ASP2, using
existing
DASD, no IPL needed.
This was a sandbox LPAR, 8205, .3 CPU, 8gb mem, CEC controller, 8
571gb 10k spinney in CEC.

1) STRASPBAL TYPE(*ENDALC) UNIT(6 7 8)
2) STRASPBAL TYPE(*MOVDTA) TIMLMT(*NOMAX) PRIORITY(*MEDIUM) - This
took a while 10-20 hours.

Could have skipped these two steps and saved some time. Step 3
below does all of that and is a bit more efficient at it. It's much
more efficient if you IPL to DST but as you stated you didn't want to
do that you're good.

3) STRSST, 3. Work with disk units , 2. Work with disk
configuration , 12. Work with removing units from configuration ; 3.
Remove units from configuration ; 4=Remove unit from configuration
6,7,8
4) Using Ops Navigator New Disk Pool Wizard , Configuration and
Service, Hardware, Disk Units, (prompts you to login via SST) ;
Disk Pools ; New Disk Pool, Created ASP2, (Unchecked Protect data
in this pool because disk already protected via Raid5) Add New
Disk, (added
6,7,8 to ASP 2. This also took a while 10-20 hours)

Had you deleted those disk units from your host and the
re-created
them the ADD would have taken just seconds. Of course you would have
spent the time creating them on your host partition so pretty likely a wash there.

5) Tested a RSTLIB, forcing the RSTASP to ASP 2, worked with no issue.
6) Tested a RSTLIBBRM command, failed with BRM2112
BRM2112 Diagnostic 30 12/07/15 10:51:13.252644
Q1AMS QBRM *STMT QIJSCEC QIJS *STMT
From module . . . . . . . . :
Q1AMS
From procedure . . . . . . :
send__11q1aMsgOS400FRC8I0StringQ2_10q1aMessage

10q1aMsgTypePviRiCQ2_10q1aMessage11q1aMsgStackRC15q1aBrmsQualName
Statement . . . . . . . . . :
278
To module . . . . . . . . . :
QIJSCEC
To procedure . . . . . . . :
QIJSCEC
Statement . . . . . . . . . :
48700
Message . . . . : ASP 00002
not valid.
Cause . . . . . : BRMS does
not recognize 00002 as a valid ASP name or
number. Either the ASP
description is not defined or an auxiliary storage
pool device is being
specified when only system (1) or basic user (2-32)
ASPs are valid. Recovery .
. . : Use the Work with ASP Descriptions using
BRM (WRKASPBRM) command
to
determine whether the ASP description exists and
verify the parameter
supports use of auxiliary storage pool devices.

Clearly a BRMS error. With system ASPs (2-32) only a number is
valid
and with iASPS (33 & up) only a name is valid. So BRMS seems in error
requiring a name for something that does not have one. ASPs 2-32 also
do not have an ASP Device.

7) WRKASPBRM revealed two ASPS. By default, *NONE is auto created
as
the name for ASP 2. BRMS did not like this.
ASP ASP ASP ASP Hierarchy
Migration
Name Number Type Class Priority Eligible

*SYSTEM 00001 *SYSBAS *NONE *YES
*NONE 00002 *SYSBAS *NONE *YES

8) 2=Change the ASP name from *NONE to SLICES (this can be
anything, not actually referenced on the RSTLIBBRM command) Currently
checking with BRMS group for the restore rules on ASP Name)

*SYSTEM 00001 *SYSBAS *NONE *YES
SLICES 00002 *SYSBAS *NONE *YES

9) Reran RSTLIBBRM command, successful restore of the entire
library
to ASP2.
10) Need to finish restoring 30 remaining app libraries to ASP2.
11) Then let the testing begin.

Overall well done!


Paul




-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On
Behalf Of Steinmetz, Paul
Sent: Thursday, December 03, 2015 3:13 PM
To: 'midrange-l@xxxxxxxxxxxx'
Subject: Need to create ASP2 to for testing SSD/HDD mixture

I need to create ASP2 for testing SSD/HDD mixture.
What would be the easiest way to do this using current existing disks.
Can a client LPAR have 2 ASPS.


Thank You
_____
Paul Steinmetz
IBM i Systems Administrator

Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071

610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home

psteinmetz@xxxxxxxxxx
http://www.pencor.com/

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