Remove failure disks from HP 3PAR Storage Solution

Equipment
1

Hello dear Experts.

I have an issue with IT (HP Storage Solution), and hopefully some data scientist here can help. :slight_smile:

Scenario: 3PAR 7200 Storage solution (from HP) with 40 disks - 6 with failure.
This is old Hardware, no longer supported (warranty) by HP.

I was able to logically remove 3 failure disks, but I am still struggling to logically remove the remaining 3. I have already tried steps below, with no success and I need some guidance:

Summary:
3 disks are still stuck and without moving the “chunklets”, it will not be possible to dismiss the disks from the system forever and restore the system health. There is no way to replace the failed disks but only remove it from the system.
The disks have no volumes anymore so any data destructive command can be executed without fear. There are only data related to the Storage system/log-admin itself.

Below I have some commands to get actual status of the chunklets causing the problem:

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image833Ă—686 162 KB

Management GUI but with only few capabilities, CLI terminal is the one I am using: You will notice the faulty disks 33, 35 and 37 (Cage2 positions 14, 17 and 20)

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image1215Ă—784 355 KB

Recipe prepared to dismiss each faulty disk (without replace):

Remove PD Recipe:
Step Command Purpose
showpd -failed Show Failed Disks
showpdch -fail Show which physical disks contained the failed chunklets

  1. setpd ldalloc off To stop data to drive - Repeat for all PDs
  2. showpd -s Make sure disks are in Degraded state
  3. movepdtospare -f -vacate -nowait Vacate all data from PD
  4. showpdch -mov See the Remaining chunklets to be moved
    4.0. showpdch - fail Failed Chunks
    4.1 showpdch -from Chunklets linked to the Disk to be moved
  5. movech -perm -ovrd X:Y OPTIONAL: If getting an error, move Chunklet manually (example X is the PDID and Y is the Chunklet number) repeat till disk is empty
  6. showpdch -spr Shows the Spare chunklets on the PD
  7. removespare PDID:a Removes the Spare chunklets from the PD
  8. dismisspd Dismisses the PD from the 3PAR
  9. Redo Steps 3-7 for all PDs
  10. Remove All PDs from Cage Remove the vacated PDs from the 3PAR
  11. tunesys -chunkpct 1 Tune System

Checking the LD (Logical Disks) I found that the system LD for log0.0 has problems, that may be also related to the 3 disks failing to be unlinked from the storage:

Cage 0 : without disks

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image585Ă—587 7.99 KB

Cage 1 : OK with 20 disks OK

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image628Ă—729 7 KB

Cage 2 : OK with 20 disks – 03 were removed logically and 03 are stuck marked in yellow

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image624Ă—734 11.4 KB

Any help will be appreciated.

2

Hi,

Write me in PM, I have the solution to your problem
regards.

1 Like
3

Hello dear @pakito56,

Thank you for your reply.

Unfortunatley, solution (3PAR) was discarded (abandoned). We took another way.

Anyway, thanks for help offer. :slight_smile:

1 Like
4

Hello!My HPE 3PAR encountered the same problem as yours. How did you solve it?Can you share your solution to the problem?Thank you very much!

5

Hello @leopedrini,
We have the same issue but still can’t solve at 3PAR 7200.Could you share your solution?
We really appreciate your sharing.

6

Hello @L_thron adn @Hai_Lang

Unfortunately, due to several factors, we decided to move in another direction, and bought new system, with storage included.

  • Lack of warranty/support
  • No one with such skills available to fix it
  • Issues with physical access to machines
  • Among other reasons motivated to move on, without the legacy hardware.
7

Thank you for your reply, @leopedrini

1 Like
8

Hi, write me in PM.

9

Hi LEO,
write me in PM.
Thanks

10

I would be grateful if someone can assist

dismisspd 61
Error : Pd id 61 is in use

on servicemag status -d we can see this

… relocating chunklets to spare space…
… chunklet 61:544 - move_error,move_failed, failed move
… chunklet 61:545 - move_error,move_failed, failed move
… chunklet 63:544 - move_error,move_failed, failed move
… chunklet 63:545 - move_error,move_failed, failed move

movech -perm -ovrd 61:545
Are you sure you want to move the chunklets?
select q=quit y=yes n=no: y
Move -State- -Detailed_State-
61:545-156:167 failed move_failed

showpdch | 61
Pdid Chnk LdName LdCh State Usage Media Sp Cl From To
61 544 log1.0 109 normal ld valid N N — —
61 545 log1.0 37 normal ld valid N N — —

Total chunklets: 2

cli% showpdch | 63
Pdid Chnk LdName LdCh State Usage Media Sp Cl From To
63 544 log1.0 113 normal ld valid N N — —
63 545 log1.0 41 normal ld valid N N — —

Total chunklets: 2

Anyone can help how to move this chunk on log1.0 to be able to replace the faulty disk.

Thanks

11

Hi Pakio56

Write me in PM.

Thanks

12

Hello,
It has been a long time, what are you recerò g to?
Thanks

13

please write to sheinvip@gmail.com