From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ilan Steinberg Subject: Re: A path to a different device was added to an existing mapth Date: Thu, 19 Mar 2015 10:35:26 +0000 Message-ID: <1426761325229.70001@kaminario.com> References: <1426759835576.51213@kaminario.com> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============6447655025460082367==" Return-path: In-Reply-To: <1426759835576.51213@kaminario.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: "dm-devel@redhat.com" Cc: Guy Keren , Eli Malul , Shahar Salzman List-Id: dm-devel.ids --===============6447655025460082367== Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_142676132522970001kaminariocom_" --_000_142676132522970001kaminariocom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, I have some more info: multipathd> show maps name sysfs uuid mpathhs dm-2 20024f400d5190000 mpathit dm-16 20024f400d519002b mpathis dm-15 20024f400d519001c mpathin dm-11 20024f400d5190012 mpathim dm-14 20024f400d5190011 mpathiw dm-13 20024f400d5190010 mpathhz dm-7 20024f400d5190006 mpathhx dm-6 20024f400d5190005 mpathhw dm-5 20024f400d5190004 mpathht dm-8 20024f400d5190003 mpathij dm-12 20024f400d519000e mpathil dm-10 20024f400d519000d mpathhv dm-3 20024f400d5190001 mpathik dm-9 20024f400d519000f mpathhu dm-4 20024f400d5190002 It seems that mpathiw is indeed with the uuid of sdag but... note that if you run 'multipath -l' you will see mpathiw having the correc= t signature (20024f400d5190026) - because it queries it again from the storag= e. Also: multipathd> show paths format "%d %s %S %w" dev vend/prod/rev size uuid . . sdaf KMNRIO,K2 300G 20024f400d519001e . sdw KMNRIO,K2 100G 20024f400d5190010 . . sdz KMNRIO,K2 100G 20024f400d5190026 . sdag KMNRIO,K2 300G 20024f400d5190010 Unfortunately, the device for sdag was deleted from the storage, but I can = still see that: [root@il-ksm3-044 ~]# sg_inq -p 0x83 /dev/sdw VPD INQUIRY: Device Identification page Designation descriptor number 1, descriptor length: 36 designator_type: T10 vendor identification, code_set: ASCII associated with the addressed logical unit vendor id: KMNRIO vendor specific: ATF-VG-1:EXP-SNAd5190026 Designation descriptor number 2, descriptor length: 12 designator_type: EUI-64 based, code_set: Binary associated with the addressed logical unit EUI-64 based 8 byte identifier IEEE Company_id: 0x24f4 Vendor Specific Extension Identifier: 0xd5190026 [0x0024f400d5190026] [root@il-ksm3-044 ~]# sg_inq -p 0x83 /dev/sdz VPD INQUIRY: Device Identification page Designation descriptor number 1, descriptor length: 36 designator_type: T10 vendor identification, code_set: ASCII associated with the addressed logical unit vendor id: KMNRIO vendor specific: ATF-VG-1:EXP-SNAd5190026 Designation descriptor number 2, descriptor length: 12 designator_type: EUI-64 based, code_set: Binary associated with the addressed logical unit EUI-64 based 8 byte identifier IEEE Company_id: 0x24f4 Vendor Specific Extension Identifier: 0xd5190026 [0x0024f400d5190026] So, sdw and sdz are path to the same device, and so are sdaf and sdag... Regards, Ilan Steinberg ________________________________ From: Ilan Steinberg Sent: Thursday, March 19, 2015 12:10 PM To: dm-devel@redhat.com Cc: Eli Malul; Guy Keren; Shahar Salzman Subject: A path to a different device was added to an existing mapth Hello, I have never posted here before but I can across an interesting error. I have run into a situation were a path (sdag) to LUN 15 with a scsi serial= number of ending with 0xd5190010 was added to an mapth (mpathiw) which is = for LUN 11 with scsi serial number ending with 0xd5190026 (sdz and sdw) I would appreciate any help understanding how/why this happened. Initiator Info: Linux il-ksm3-044 2.6.32-431.el6.x86_64 #1 device-mapper-multipath version 0.4.9 multipath.conf: defaults { user_friendly_names yes polling_interval 10 verbosity 2 } devices { device { vendor "KMNRIO" product "K2" path_grouping_policy multibus getuid_callout "/lib/udev/scsi_id --w= hitelisted --device=3D/dev/%n" path_checker tur path_selector "queue-length 0" no_path_retry fail hardware_handler "0" rr_weight priorities rr_min_io 1 failback 15 fast_io_fail_tmo 5 dev_loss_tmo 8 } } Since I see that sdz and sdw used to belong to mapthiv (was it renamed to m= athiw?) This might be useful info - in the bindings file I see: ... mpathiv 20024f400d5190010 <---------------------------= ------------- this is the scsi_sn of sdag mpathiw 20024f400d5190026 <----------------------------= ------------ this is the scsi_sn of sdz/w ... I am adding the relevant host logs (I can add the full logs if needed) - er= ror is in the last log line: Mar 14 09:44:36 il-ksm3-044 kernel: sdag: detected capacity change from 0 t= o 322122547200 Mar 14 09:59:35 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Warning! Received a= n indication that the LUN reached a thin provisioning soft threshold. Mar 14 10:00:06 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Warning! Received a= n indication that the LUN reached a thin provisioning soft threshold. Mar 14 10:00:21 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Warning! Received a= n indication that the LUN reached a thin provisioning soft threshold. Mar 14 10:26:31 il-ksm3-044 kernel: end_request: I/O error, dev sdz, sector= 167369280 Mar 14 10:26:31 il-ksm3-044 kernel: end_request: I/O error, dev sdz, sector= 80032448 Mar 14 10:26:44 il-ksm3-044 multipathd: sdz: remove path (uevent) Mar 14 10:26:44 il-ksm3-044 multipathd: sdz [65:144]: path removed from map= mpathiv Mar 14 10:26:44 il-ksm3-044 multipathd: sdag: remove path (uevent) Mar 14 10:26:44 il-ksm3-044 multipathd: sdag [66:0]: path removed from map = mpathks Mar 14 10:26:44 il-ksm3-044 multipathd: mpathiv: load table [0 209715200 mu= ltipath 0 0 1 1 queue-length 0 1 1 65:96 1] Mar 14 10:26:44 il-ksm3-044 multipathd: mpathks: load table [0 629145600 mu= ltipath 0 0 1 1 queue-length 0 1 1 65:240 1] Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] 209715200 512-byte l= ogical blocks: (107 GB/100 GiB) Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Write Protect is off Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Write cache: disable= d, read cache: enabled, supports DPO and FUA Mar 14 10:53:50 il-ksm3-044 kernel: sdz: Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Attached SCSI disk Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] 629145600 512-byte = logical blocks: (322 GB/300 GiB) Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Write Protect is of= f Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Write cache: disabl= ed, read cache: enabled, supports DPO and FUA Mar 14 10:53:50 il-ksm3-044 kernel: sdag: unknown partition table Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Attached SCSI disk Mar 14 10:53:50 il-ksm3-044 multipathd: sdag: add path (uevent) Mar 14 10:53:50 il-ksm3-044 multipathd: mpathks: failed in domap for additi= on of new path sdag Mar 14 10:53:50 il-ksm3-044 multipathd: sdz: add path (uevent) Mar 14 10:53:50 il-ksm3-044 multipathd: sdz [65:144]: path added to devmap = mpathiv Mar 14 10:53:50 il-ksm3-044 multipathd: mpathiv: load table [0 209715200 mu= ltipath 0 0 1 1 queue-length 0 2 1 65:96 1 65:144 1] Mar 14 12:29:12 il-ksm3-044 multipathd: sdw: remove path (uevent) Mar 14 12:29:12 il-ksm3-044 multipathd: mpathiv: load table [0 209715200 mu= ltipath 0 0 1 1 queue-length 0 1 1 65:144 1] Mar 14 12:29:12 il-ksm3-044 multipathd: sdw [65:96]: path removed from map = mpathiv Mar 15 12:45:59 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Warning! Received an= indication that the LUN assignments on this target have changed. The Linux= SCSI layer does not automatically remap LUN assignments. Mar 14 12:59:18 il-ksm3-044 kernel: sd 7:0:1:11: [sdw] 209715200 512-byte l= ogical blocks: (107 GB/100 GiB) Mar 14 12:59:18 il-ksm3-044 kernel: sd 7:0:1:11: [sdw] Write Protect is off Mar 14 12:59:18 il-ksm3-044 kernel: sd 7:0:1:11: [sdw] Write cache: disable= d, read cache: enabled, supports DPO and FUA Mar 14 12:59:18 il-ksm3-044 kernel: sd 7:0:1:11: [sdw] Attached SCSI disk Mar 14 12:59:18 il-ksm3-044 multipathd: sdw: add path (uevent) Mar 14 12:59:18 il-ksm3-044 multipathd: mpathiv: load table [0 209715200 mu= ltipath 0 0 1 1 queue-length 0 2 1 65:144 1 65:96 1] Mar 14 12:59:18 il-ksm3-044 multipathd: sdw [65:96]: path added to devmap m= pathiv Mar 15 11:45:27 il-ksm3-044 kernel: sdz: detected capacity change from 0 to= 107374182400 Mar 15 11:45:33 il-ksm3-044 multipathd: mpathiw: event checker started Mar 15 11:45:33 il-ksm3-044 multipathd: mpathiw: devmap dm-13 added Mar 15 12:28:12 il-ksm3-044 multipathd: mpathiw: event checker exit Mar 15 12:28:15 il-ksm3-044 multipathd: mpathiw: event checker started Mar 15 12:28:15 il-ksm3-044 multipathd: mpathiw: devmap dm-13 added Mar 15 12:56:35 il-ksm3-044 kernel: end_request: I/O error, dev sdz, sector= 204563968 Mar 15 12:56:35 il-ksm3-044 kernel: end_request: I/O error, dev sdz, sector= 193484032 Mar 15 12:56:35 il-ksm3-044 multipathd: mpathiw: remaining active paths: 1 Mar 15 12:56:48 il-ksm3-044 multipathd: sdz: remove path (uevent) Mar 15 12:56:48 il-ksm3-044 multipathd: mpathiw: load table [0 209715200 mu= ltipath 0 0 1 1 queue-length 0 1 1 65:96 1] Mar 15 12:56:48 il-ksm3-044 multipathd: sdz [65:144]: path removed from map= mpathiw Mar 15 12:56:48 il-ksm3-044 multipathd: sdag: remove path (uevent) Mar 15 13:27:00 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] 209715200 512-byte l= ogical blocks: (107 GB/100 GiB) Mar 15 13:27:00 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Write Protect is off Mar 15 13:27:00 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Write cache: disable= d, read cache: enabled, supports DPO and FUA Mar 15 13:27:00 il-ksm3-044 kernel: sdz: unknown partition table Mar 15 13:27:00 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Attached SCSI disk Mar 15 13:27:00 il-ksm3-044 multipathd: sdz: add path (uevent) Mar 15 13:27:00 il-ksm3-044 multipathd: mpathiw: failed in domap for additi= on of new path sdz Mar 15 15:20:41 il-ksm3-044 multipathd: mpathiw: devmap dm-13 added Mar 15 17:38:36 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Warning! Received an= indication that the LUN assignments on this target have changed. The Linux= SCSI layer does not automatically remap LUN assignments. Mar 15 18:44:54 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] 629145600 512-byte = logical blocks: (322 GB/300 GiB) Mar 15 18:44:54 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Write Protect is of= f Mar 15 18:44:54 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Write cache: disabl= ed, read cache: enabled, supports DPO and FUA Mar 15 18:44:54 il-ksm3-044 kernel: sdag: unknown partition table Mar 15 18:44:54 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Attached SCSI disk Mar 15 18:44:55 il-ksm3-044 multipathd: sdag: add path (uevent) Mar 15 18:44:55 il-ksm3-044 multipathd: mpathiw: load table [0 209715200 mu= ltipath 0 0 1 1 queue-length 0 3 1 65:96 1 65:144 1 66:0 1] Mar 15 18:44:55 il-ksm3-044 multipathd: sdag [66:0]: path added to devmap m= pathiw Thank you, Ilan Steinberg --_000_142676132522970001kaminariocom_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi,


I have some more info:


multipathd> show map= s
name    sysfs uuid
mpathhs dm-2  20024f400d5190000
mpathit dm-16 20024f400d519002b
mpathis dm-15 20024f400d519001c
mpathin dm-11 20024f400d5190012
mpathim dm-14 20024f400d5190011
mpathiw dm-13 20024f400d5190010
mpathhz dm-7  20024f400d5190006
mpathhx dm-6  20024f400d5190005
mpathhw dm-5  20024f400d5190004
mpathht dm-8  20024f400d5190003
mpathij dm-12 20024f400d519000e
mpathil dm-10 20024f400d519000d
mpathhv dm-3  20024f400d5190001
mpathik dm-9  20024f400d519000f
mpathhu dm-4  20024f400d5190002


It seems that mpathiw is indeed with the uuid of sdag but...


note that  if you run 'multipath -= l' you will see mpathiw having the correct
signature (20024f400d5190026) - because it queries it again from the storag= e.


Also:


multipathd> show paths format "%= d %s %S %w"
dev  vend/prod/rev size uuid
.
.
sdaf KMNRIO,K2     300G 20024f400d519001e
.
sdw  KMNRIO,K2     100G 20024f400d5190010
.
.
sdz  KMNRIO,K2     100G 20024f400d5190026
.
sdag KMNRIO,K2     300G 20024f400d5190010



Unfortunately, the device for sdag was deleted from the storage, but I can = still see that:

[root@il-ksm3-044 ~]# sg_inq -p 0x83 /dev/sdw
VPD INQUIRY: Device Identification page
  Designation descriptor number 1, des= criptor length: 36
    designator_type: T10 ven= dor identification,  code_set: ASCII
    associated with the addr= essed logical unit
      vendor id: K= MNRIO  
      vendor speci= fic: ATF-VG-1:EXP-SNAd5190026
  Designation descriptor number 2, des= criptor length: 12
    designator_type: EUI-64 = based,  code_set: Binary
    associated with the addr= essed logical unit
      EUI-64 based= 8 byte identifier
      IEEE Company= _id: 0x24f4
      Vendor Speci= fic Extension Identifier: 0xd5190026
      [0x0= 024f400d5190026]
[root@il-ksm3-044 ~]# sg_inq -p 0x83 /dev/sdz
VPD INQUIRY: Device Identification page
  Designation descriptor number 1, des= criptor length: 36
    designator_type: T10 ven= dor identification,  code_set: ASCII
    associated with the addr= essed logical unit
      vendor id: K= MNRIO  
      vendor speci= fic: ATF-VG-1:EXP-SNAd5190026
  Designation descriptor number 2, des= criptor length: 12
    designator_type: EUI-64 = based,  code_set: Binary
    associated with the addr= essed logical unit
      EUI-64 based= 8 byte identifier
      IEEE Company= _id: 0x24f4
      Vendor Speci= fic Extension Identifier: 0xd5190026
      [0x0= 024f400d5190026]

So, sdw and sdz are path to the same device, and so are sdaf and sdag...
Regards,
Ilan Steinberg


From: Ilan Steinberg
Sent: Thursday, March 19, 2015 12:10 PM
To: dm-devel@redhat.com
Cc: Eli Malul; Guy Keren; Shahar Salzman
Subject: A path to a different device was added to an existing mapth=
 

Hello,


I have never posted here = before but I can across an interesting error.


I have run into a situati= on were a path (sdag) to LUN 15 with a scsi serial number of ending with 0x= d5190010 was added to an mapth (mpathiw) which is for LUN 11 with scsi seri= al number ending with 0xd5190026 (sdz and sdw)


I would appreciate any he= lp understanding how/why this happened.


Initiator Info:

Linux il-ksm3-044 2.6.32-= 431.el6.x86_64 #1

device-mapper-multipath v= ersion 0.4.9


multipath.conf:

defaults {
            &nb= sp;      user_friendly_names   &nbs= p; yes
            &nb= sp;      polling_interval    &= nbsp;   10
            &nb= sp;       verbosity    &n= bsp;          2
}
devices {
            &nb= sp;       device  {
            &nb= sp;            =     vendor        &n= bsp;            = ; "KMNRIO"
            &nb= sp;            =     product        &= nbsp;            &qu= ot;K2"
             &n= bsp;           path_group= ing_policy        multibus
            &nb= sp;            =     getuid_callout       =    "/lib/udev/scsi_id --whitelisted --device=3D/dev/%n"=
            &nb= sp;            =     path_checker       &n= bsp;        tur
            &nb= sp;            =     path_selector       &= nbsp;       "queue-length 0"
            &nb= sp;            =     no_path_retry       &= nbsp;       fail
            &nb= sp;            =     hardware_handler      &nbs= p;     "0"
            &nb= sp;            =     rr_weight        = ;           priorities             &nb= sp;            =     rr_min_io        = ;       1
            &nb= sp;            =     failback        =         15
            &nb= sp;            =     fast_io_fail_tmo      &nbs= p; 5
            &nb= sp;            =     dev_loss_tmo       &n= bsp;    8
            &nb= sp;            =     }
}


Since I see that sdz and = sdw used to belong to mapthiv (was it renamed to mathiw?)

This might be useful info= - in the bindings file I see:

...

mpathiv 20024f400d5190010       &n= bsp;            = ;  <---------------------------------------- this is the scsi_sn of= sdag

mpathiw 20024f400d5190026       &n= bsp;            = ; <---------------------------------------- this is the scsi_sn of sdz/w=

...


I am adding the relevant = host logs (I can add the full logs if needed) - error is in the last log li= ne:

Mar 14 09:44:36 il-ksm3-044 kernel: sdag: detected capacity change =
from 0 to 322122547200=0A=
=0A=
Mar 14 09:59:35 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Warning! Received a=
n indication that the LUN reached a thin provisioning soft threshold.=0A=
=0A=
Mar 14 10:00:06 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Warning! Received a=
n indication that the LUN reached a thin provisioning soft threshold.=0A=
=0A=
Mar 14 10:00:21 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Warning! Received a=
n indication that the LUN reached a thin provisioning soft threshold.=0A=
=0A=
Mar 14 10:26:31 il-ksm3-044 kernel: end_request: I/O error, dev sdz, sector=
 167369280=0A=
Mar 14 10:26:31 il-ksm3-044 kernel: end_request: I/O error, dev sdz, sector=
 80032448=0A=
=0A=
Mar 14 10:26:44 il-ksm3-044 multipathd: sdz: remove path (uevent)=0A=
Mar 14 10:26:44 il-ksm3-044 multipathd: sdz [65:144]: path removed from map=
 mpathiv=0A=
Mar 14 10:26:44 il-ksm3-044 multipathd: sdag: remove path (uevent)=0A=
Mar 14 10:26:44 il-ksm3-044 multipathd: sdag [66:0]: path removed from map =
mpathks=0A=
=0A=
Mar 14 10:26:44 il-ksm3-044 multipathd: mpathiv: load table [0 209715200 mu=
ltipath 0 0 1 1 queue-length 0 1 1 65:96 1]=0A=
Mar 14 10:26:44 il-ksm3-044 multipathd: mpathks: load table [0 629145600 mu=
ltipath 0 0 1 1 queue-length 0 1 1 65:240 1]=0A=
=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] 209715200 512-byte l=
ogical blocks: (107 GB/100 GiB)=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Write Protect is off=
=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Write cache: disable=
d, read cache: enabled, supports DPO and FUA=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sdz:=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Attached SCSI disk=
=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] 629145600 512-byte =
logical blocks: (322 GB/300 GiB)=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Write Protect is of=
f=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Write cache: disabl=
ed, read cache: enabled, supports DPO and FUA=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sdag: unknown partition table=0A=
Mar 14 10:53:50 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Attached SCSI disk=
=0A=
Mar 14 10:53:50 il-ksm3-044 multipathd: sdag: add path (uevent)=0A=
Mar 14 10:53:50 il-ksm3-044 multipathd: mpathks: failed in domap for additi=
on of new path sdag=0A=
Mar 14 10:53:50 il-ksm3-044 multipathd: sdz: add path (uevent)=0A=
Mar 14 10:53:50 il-ksm3-044 multipathd: sdz [65:144]: path added to devmap =
mpathiv=0A=
=0A=
Mar 14 10:53:50 il-ksm3-044 multipathd: mpathiv: load table [0 209715200 mu=
ltipath 0 0 1 1 queue-length 0 2 1 65:96 1 65:144 1]=0A=
=0A=
Mar 14 12:29:12 il-ksm3-044 multipathd: sdw: remove path (uevent)=0A=
Mar 14 12:29:12 il-ksm3-044 multipathd: mpathiv: load table [0 209715200 mu=
ltipath 0 0 1 1 queue-length 0 1 1 65:144 1]=0A=
Mar 14 12:29:12 il-ksm3-044 multipathd: sdw [65:96]: path removed from map =
mpathiv=0A=
=0A=
Mar 15 12:45:59 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Warning! Received an=
 indication that the LUN assignments on this target have changed. The Linux=
 SCSI layer does not automatically remap LUN assignments.=0A=
=0A=
Mar 14 12:59:18 il-ksm3-044 kernel: sd 7:0:1:11: [sdw] 209715200 512-byte l=
ogical blocks: (107 GB/100 GiB)=0A=
Mar 14 12:59:18 il-ksm3-044 kernel: sd 7:0:1:11: [sdw] Write Protect is off=
=0A=
Mar 14 12:59:18 il-ksm3-044 kernel: sd 7:0:1:11: [sdw] Write cache: disable=
d, read cache: enabled, supports DPO and FUA=0A=
Mar 14 12:59:18 il-ksm3-044 kernel: sd 7:0:1:11: [sdw] Attached SCSI disk=
=0A=
=0A=
Mar 14 12:59:18 il-ksm3-044 multipathd: sdw: add path (uevent)=0A=
Mar 14 12:59:18 il-ksm3-044 multipathd: mpathiv: load table [0 209715200 mu=
ltipath 0 0 1 1 queue-length 0 2 1 65:144 1 65:96 1]=0A=
Mar 14 12:59:18 il-ksm3-044 multipathd: sdw [65:96]: path added to devmap m=
pathiv=0A=
=0A=
Mar 15 11:45:27 il-ksm3-044 kernel: sdz: detected capacity change from 0 to=
 107374182400=0A=
=0A=
Mar 15 11:45:33 il-ksm3-044 multipathd: mpathiw: event checker started=0A=
Mar 15 11:45:33 il-ksm3-044 multipathd: mpathiw: devmap dm-13 added=0A=
=0A=
Mar 15 12:28:12 il-ksm3-044 multipathd: mpathiw: event checker exit=0A=
=0A=
Mar 15 12:28:15 il-ksm3-044 multipathd: mpathiw: event checker started=0A=
Mar 15 12:28:15 il-ksm3-044 multipathd: mpathiw: devmap dm-13 added=0A=
=0A=
Mar 15 12:56:35 il-ksm3-044 kernel: end_request: I/O error, dev sdz, sector=
 204563968=0A=
Mar 15 12:56:35 il-ksm3-044 kernel: end_request: I/O error, dev sdz, sector=
 193484032=0A=
Mar 15 12:56:35 il-ksm3-044 multipathd: mpathiw: remaining active paths: 1=
=0A=
=0A=
Mar 15 12:56:48 il-ksm3-044 multipathd: sdz: remove path (uevent)=0A=
Mar 15 12:56:48 il-ksm3-044 multipathd: mpathiw: load table [0 209715200 mu=
ltipath 0 0 1 1 queue-length 0 1 1 65:96 1]=0A=
Mar 15 12:56:48 il-ksm3-044 multipathd: sdz [65:144]: path removed from map=
 mpathiw=0A=
Mar 15 12:56:48 il-ksm3-044 multipathd: sdag: remove path (uevent)=0A=
=0A=
Mar 15 13:27:00 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] 209715200 512-byte l=
ogical blocks: (107 GB/100 GiB)=0A=
Mar 15 13:27:00 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Write Protect is off=
=0A=
Mar 15 13:27:00 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Write cache: disable=
d, read cache: enabled, supports DPO and FUA=0A=
Mar 15 13:27:00 il-ksm3-044 kernel: sdz: unknown partition table=0A=
Mar 15 13:27:00 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Attached SCSI disk=
=0A=
Mar 15 13:27:00 il-ksm3-044 multipathd: sdz: add path (uevent)=0A=
Mar 15 13:27:00 il-ksm3-044 multipathd: mpathiw: failed in domap fo=
r addition of new path sdz=0A=
=0A=
Mar 15 15:20:41 il-ksm3-044 multipathd: mpathiw: devmap dm-13 added=0A=
=0A=
Mar 15 17:38:36 il-ksm3-044 kernel: sd 8:0:1:11: [sdz] Warning! Received an=
 indication that the LUN assignments on this target have changed. The Linux=
 SCSI layer does not automatically remap LUN assignments.=0A=
=0A=
Mar 15 18:44:54 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] 629145600 512-byte =
logical blocks: (322 GB/300 GiB)=0A=
Mar 15 18:44:54 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Write Protect is of=
f=0A=
Mar 15 18:44:54 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Write cache: disabl=
ed, read cache: enabled, supports DPO and FUA=0A=
Mar 15 18:44:54 il-ksm3-044 kernel: sdag: unknown partition table=0A=
Mar 15 18:44:54 il-ksm3-044 kernel: sd 8:0:1:15: [sdag] Attached SCSI disk=
=0A=
=0A=
Mar 15 18:44:55 il-ksm3-044 multipathd: sdag: add path (uevent)=0A=
Mar 15 18:44:55 il-ksm3-044 multipathd: mpathiw: load table [0 209715200 mu=
ltipath 0 0 1 1 queue-length 0 3 1 65:96 1 65:144 1 66:0 1=
]=0A=
Mar 15 18:44:55 il-ksm3-044 multipathd: sdag [66:0]: path added to =
devmap mpathiw

Thank you,
Ilan Steinberg
--_000_142676132522970001kaminariocom_-- --===============6447655025460082367== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline --===============6447655025460082367==--