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  3. January 2021

Re: Catastrophic disk failure

Status update:

We got the replacement drive installed and configured, installed the LIC, formatted the drives to enable RAID5, and installed the operating system.
Following the procedure to recover a system from tape, we then restored user security profiles and user libraries. Everything's out there.
I have not recreated the NWSSTG device, and may not, as the space may be better used for other purposes, and have not applied the OS license key.

But, I can't seem to get it to IPL normally. I don't know if I skipped a step, or what.
When I activate the partition (B/Normal), it insists on going into a console session, with the 'IPL or Install the System' panel.
Selecting the option to IPL, it does a step by step IPL, showing all the intermediate steps as it goes.
It arrives at the IPL Options panel and finally the QSYSOPR messages panel is displayed, showing CPF0975 (Console did not vary on).
Pressing Enter, I am presented with a sign on panel, which is in the QCTL subsystem.

Any idea what I missed?

Best Regards,

Thomas Garvey


On 1/9/2021 11:07 AM, Pete Helgren wrote:
Thanks Paul.  If you scroll all the way to the bottom of my original post you'll see that view.  So, if the "Display device parity status" shows RAID5 and active, all is well.  Something about that "Protection - Unprotected" column can freak you out...

Pete Helgren
www.petesworkshop.com
GIAC Secure Software Programmer-Java
AWS Certified Cloud Practitioner
Twitter - Sys_i_Geek  IBM_i_Geek

On 1/8/2021 5:13 PM, Steinmetz, Paul via MIDRANGE-L wrote:
Pete,

A better view might be option 5. Display device parity status

Parity                      Resource                      Hot Spare
   Set  ASP Unit  Type Model Name       Status Protection
     1            57B1  001  DC01       RAID 5 Y
          1   12  5B21  109  DMP028     Active
          1   13  5B21  109  DMP030     Active
          1   14  5B21  109  DMP032     Active
          1   15  5B21  109  DMP034     Active
          1   16  5B21  109  DMP036     Active
          1   17  5B21  109  DMP038     Active
          1   19  5B21  109  DMP040     Active
          1   18  5B21  109  DMP042     Active
          1   20  5B21  109  DMP044     Active
          1   21  5B21  109  DMP046     Active
          1   22  5B21  109  DMP048     Active
     2            57B1  001  DC01       RAID 5 Y
          1   11  5B21  109  DMP025     Active

Paul

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Steinmetz, Paul via MIDRANGE-L
Sent: Friday, January 08, 2021 5:50 PM
To: 'midrange-l@xxxxxxxxxxxxxxxxxx' <midrange-l@xxxxxxxxxxxxxxxxxx>
Cc: Steinmetz, Paul <PSteinmetz@xxxxxxxxxx>
Subject: RE: Catastrophic disk failure

Pete,

>From a V7R3 system, I see this.
When running Raid5, I think it's normal to see Unprotected for the ASP

                     Display Disk Configuration Protection
           Serial Resource                              Hot Spare
ASP Unit  Number          Type Model Name Protection         Protection
   1                                             Unprotected
        1  Y6804KV02VAX    5B21  109  DMP001     RAID 5                  Y
        2  Y6804KV02WUX    5B21  109  DMP007     RAID 5                  Y
        3  Y6804KV060EX    5B21  109  DMP009     RAID 5                  Y
        4  Y6804KV02B6X    5B21  109  DMP013     RAID 5                  Y
        5  Y6804KV04TVX    5B21  109  DMP011     RAID 5                  Y
        6  Y6804KV07HXX    5B21  109  DMP015     RAID 5                  Y
        7  Y6804KV0EYEX    5B21  109  DMP017     RAID 5                  Y
        8  Y6804KV0G9KX    5B21  109  DMP019     RAID 5                  Y
        9  Y6804KV03N1X    5B21  109  DMP021     RAID 5                  Y
       10  Y6804KV02PTX    5B21  109  DMP023     RAID 5                  Y
       11  Y6804KV060GX    5B21  109  DMP025     RAID 5                  Y
       12  Y6804KV03N8X    5B21  109  DMP028     RAID 5                  Y
       13  Y6804KV02UEX    5B21  109  DMP030     RAID 5                  Y

Paul

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Pete Helgren
Sent: Friday, January 08, 2021 5:38 PM
To: midrange-l@xxxxxxxxxxxxxxxxxx
Subject: Re: Catastrophic disk failure

________________________________
  CAUTION: This email originated from outside of the PENCOR network. Do not click on any links or open attachments unless the sender is known, and the content is verified as safe.
________________________________

So, this thread has made me nervous.  What *should* I see?  When I look at parity protection on my IBM i (7.4) I see this:

                       Display Disk Configuration Protection

             Serial Resource                      Hot Spare
   ASP Unit  Number          Type Model Name Protection Protection
     1 Unprotected
          1  Y210WAE1FB13    5B41  099  DMP001     RAID 5                  N
          2  Y210WAE0RMT0    5B41  099  DMP005     RAID 5                  N
          3  Y210WAE0NBG9    5B41  099  DMP007     RAID 5                  N
          4  Y210WAE1CV48    5B41  099  DMP003     RAID 5                  N
          5  Y210WAE15BLD    5B41  099  DMP009     RAID 5                  N
          6  Y210WAE0S2YD    5B41  099  DMP013     RAID 5                  N
          7  Y210WAE15BNN    5B41  099  DMP011     RAID 5                  N

                          Display Device Parity Status

   Parity                      Resource                      Hot Spare
     Set  ASP Unit  Type Model Name       Status Protection
       1            57D8  001  DC01       RAID 5 N
            1    2  5B41  099  DMP005 Active
            1    4  5B41  099  DMP003 Active
            1    3  5B41  099  DMP007 Active
            1    1  5B41  099  DMP001 Active
            1    7  5B41  099  DMP011 Active
            1    6  5B41  099  DMP013 Active
            1    5  5B41  099  DMP009     Active


Is it the protection status in the "Display Disk Configuration Protection" that clues me in that I am "Unprotected"?  So the RAID 5 status tells me what, exactly?


Pete Helgren
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=www.petesworkshop.com&umid=ca701e1d-9625-4ac4-8fc7-c133d91a88fd&auth=438b0784514c1757bd202125ca4db8b0abdb021e-bef60b99b3ffc799c61be46db25d7b081f769629
GIAC Secure Software Programmer-Java
AWS Certified Cloud Practitioner
Twitter - Sys_i_Geek  IBM_i_Geek

On 1/8/2021 8:02 AM, Steinmetz, Paul via MIDRANGE-L wrote:
Sample

            Serial Resource                      Hot Spare
ASP Unit  Number          Type Model Name Protection         Protection
    1                                             Unprotected
         1  Y6804KV02VAX    5B21  109  DMP001     RAID 5                  Y
         2  Y6804KV02WUX    5B21  109  DMP007     RAID 5                  Y
         3  Y6804KV060EX    5B21  109  DMP009     RAID 5                  Y

Paul

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of
Thomas Garvey
Sent: Friday, January 08, 2021 8:55 AM
To: Midrange Systems Technical Discussion
<midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Catastrophic disk failure

Hi,

We experienced a disk drive failure and were unconcerned since we had replacements available and believed that RAID5 was protecting us.
Now our technician is not sure whether our disks are actually protected.

Can someone tell me what the DST screen should show if our drives actually have RAID enabled? We can't get through an IPL but we can boot it into DST at least.
We are afraid we may have to rebuild from a system save tape.

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