Hello. 

I'm sorry to have e-mailed you here but I did not really find the answer.

When a disk starts to die slowly multipath starts to Failing & Reinstating paths and this keeps forever.. (I'm using LSI-3008HBA card with SAS-JBOD not FC-Network)

Because kernel do not echo to offline faulted disk. This is causing terrible problems to me.

Linux DEV2 4.14.67-1-lts #1 

Dmesg;

    Sep 13 11:20:17 DEV2 kernel: sd 0:0:190:0: attempting task abort! scmd(ffff88110e632948)

    Sep 13 11:20:17 DEV2 kernel: sd 0:0:190:0: [sdft] tag#3 CDB: opcode=0x0 00 00 00 00 00 00

    Sep 13 11:20:17 DEV2 kernel: scsi target0:0:190: handle(0x0037), sas_address(0x5000c50093d4e7c6), phy(38)

    Sep 13 11:20:17 DEV2 kernel: scsi target0:0:190: enclosure_logical_id(0x500304800929ec7f), slot(37)

    Sep 13 11:20:17 DEV2 kernel: scsi target0:0:190: enclosure level(0x0001),connector name(1   )

    Sep 13 11:20:17 DEV2 kernel: sd 0:0:190:0: task abort: SUCCESS scmd(ffff88110e632948)

    Sep 13 11:20:18 DEV2 kernel: device-mapper: multipath: Failing path 130:240.

    Sep 13 11:25:34 DEV2 kernel: device-mapper: multipath: Reinstating path 130:240.

Full dmesg example: https://paste.ubuntu.com/p/H9NMWxNfgD/

 

As you can see kernel aborted the mission and after that multipath failed.

So I want to get rid of this problem via telling Multipath "do not Reinstate the path".  

This method will keep dead the zombie disk.

If I dont kick the disk out its causing HBA reset and I'm losing all disk in my pool and ZFS pool suspending.

I'm not saying this problem related to multipathd, I'm just thinking this will save me.

So how can I tell the multipath do not Reinstate X times failed path?

Thank you.