From mboxrd@z Thu Jan 1 00:00:00 1970 From: "liuqing@huayun.com" Subject: Re: Multipath ID not equal to LUN scsi ID Date: Tue, 11 Jul 2017 09:32:18 +0800 Message-ID: <2017071109321797286930@huayun.com> References: <2017071017581348809421@huayun.com>, <1499694912.29151.12.camel@suse.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============6781425846267663477==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Martin Wilck , dm-devel Cc: liuqing List-Id: dm-devel.ids This is a multi-part message in MIME format. --===============6781425846267663477== Content-Type: multipart/alternative; boundary="----=_001_NextPart617708430057_=----" This is a multi-part message in MIME format. ------=_001_NextPart617708430057_=---- Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 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Hi Martin,
Tha= nks for the response.
I built multipath using the latest code to= test, but I also see this issue in our product environment(m= ultipath-tools v0.4.9 (05/33, 2016)).

=
I use getuid_callout is due to the id_serial is not correct as = following:
[root@localhost ~]# multipath -ll
36= 005076300810eadf800000000000156 dm-3 IBM,2145
size=3D8.0G&nbs= p;features=3D'2 queue_if_no_path retain_attached_hw_handler'&nbs= p;hwhandler=3D'1 alua' wp=3Drw
|-+- policy=3D'service-ti= me 0' prio=3D50 status=3Dactive
| `- 2:0:0:0&n= bsp;sdp 8:240 active ready running
`-+- policy= =3D'service-time 0' prio=3D10 status=3Denabled
 &nb= sp;`- 2:0:1:0 sdq 65:0  active ready ru= nning

[root@localhost ~]#&nb= sp;udevadm info /dev/sdp
P: /devices/pci0000:40/0000:40:= 02.0/0000:42:00.1/host2/rport-2:0-0/target2:0:0/2:0:0:0/block/sdp
N:&nb= sp;sdp
S: disk/by-id/scsi-36005076300810eadf800000000000156
S:&= nbsp;disk/by-id/wwn-0x6005076300810eadf800000000000156
S: disk/by-= path/pci-0000:42:00.1-fc-0x500507680307ab7c-lun-0
E: DEVLINKS=3D/d= ev/disk/by-id/scsi-36005076300810eadf800000000000156 /dev/disk/by-id/= wwn-0x6005076300810eadf800000000000156 /dev/disk/by-path/pci-0000:42:= 00.1-fc-0x500507680307ab7c-lun-0
E: DEVNAME=3D/dev/sdp
E: = DEVPATH=3D/devices/pci0000:40/0000:40:02.0/0000:42:00.1/host2/rport-2:0-0/= target2:0:0/2:0:0:0/block/sdp
E: DEVTYPE=3Ddisk
E: ID_BUS= =3Dscsi
E: ID_MODEL=3D2145
E: ID_MODEL_ENC=3D2145\x20\x20\= x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
E: ID_PATH=3Dpci-0000:42:0= 0.1-fc-0x500507680307ab7c-lun-0
E: ID_PATH_TAG=3Dpci-0000_42_00_1-= fc-0x500507680307ab7c-lun-0
E: ID_REVISION=3D0000
E: ID_SC= SI=3D1
E: ID_SCSI_SERIAL=3D00c02043ab7eXX00
E: ID_SERIAL= =3D36005076300810eadf800000000000156
E: ID_SERIAL_SHORT=3D60050763= 00810eadf800000000000156
E: ID_TARGET_PORT=3D0
E: ID_TYPE= =3Ddisk
E: ID_VENDOR=3DIBM
E: ID_VENDOR_ENC=3DIBM\x20\x20\= x20\x20\x20
E: ID_WWN=3D0x6005076300810ead
E: ID_WWN_VENDO= R_EXTENSION=3D0xf800000000000156
E: ID_WWN_WITH_EXTENSION=3D0x6005= 076300810eadf800000000000156
E: MAJOR=3D8
E: MINOR=3D240E: MPATH_SBIN_PATH=3D/sbin
E: SUBSYSTEM=3Dblock
E: = TAGS=3D:systemd:
E: USEC_INITIALIZED=3D262761901185

[root@l= ocalhost ~]# /lib/udev/scsi_id --whitelisted --replace= -whitespace --device=3D/dev/sdp
36005076300810eadf800000000000155<= br>

multipath -v3
=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=0A
Jul 11 10:08:4= 9 | libdevmapper version 1.02.135-RHEL7 (2016-11-= 16)
Jul 11 10:08:49 | DM multipath kernel=  driver v1.9.0
Jul 11 10:08:49 | loading&= nbsp;/lib64/multipath/libchecktur.so checker
Jul 11 10:0= 8:49 | loading /lib64/multipath/libprioconst.so priori= tizer
Jul 11 10:08:49 | sda: udev propert= y ID_WWN whitelisted
Jul 11 10:08:49 | sd= a: device node name blacklisted
Jul 11 10= :08:49 | sdb: udev property ID_WWN whitelist= ed
Jul 11 10:08:49 | sdb: device node&nbs= p;name blacklisted
Jul 11 10:08:49 | sdk: = ;udev property ID_WWN whitelisted
Jul 11 10:08= :49 | sdk: device node name blacklisted
J= ul 11 10:08:49 | sdl: udev property ID_= WWN whitelisted
Jul 11 10:08:49 | sdl: de= vice node name blacklisted
Jul 11 10:08:49&nbs= p;| sdm: udev property ID_WWN whitelisted
Jul&= nbsp;11 10:08:49 | sdm: device node name&nbs= p;blacklisted
Jul 11 10:08:49 | sdc: udev = ;property ID_WWN whitelisted
Jul 11 10:08:49 |=  sdc: device node name blacklisted
Jul 11=  10:08:49 | sdd: udev property ID_WWN w= hitelisted
Jul 11 10:08:49 | sdd: device = node name blacklisted
Jul 11 10:08:49 | s= de: udev property ID_WWN whitelisted
Jul 11&nb= sp;10:08:49 | sde: device node name blacklis= ted
Jul 11 10:08:49 | sdf: udev property&= nbsp;ID_WWN whitelisted
Jul 11 10:08:49 | sdf:=  device node name blacklisted
Jul 11 10:0= 8:49 | sdg: udev property ID_WWN whitelisted=
Jul 11 10:08:49 | sdg: device node = name blacklisted
Jul 11 10:08:49 | sdh: u= dev property ID_WWN whitelisted
Jul 11 10:08:4= 9 | sdh: device node name blacklisted
Jul=  11 10:08:49 | sdi: udev property ID_WW= N whitelisted
Jul 11 10:08:49 | sdi: devi= ce node name blacklisted
Jul 11 10:08:49 = | sdj: udev property ID_WWN whitelisted
Jul&nb= sp;11 10:08:49 | sdj: device node name = blacklisted
Jul 11 10:08:49 | sdp: udev p= roperty ID_WWN whitelisted
Jul 11 10:08:49 |&n= bsp;sdp: mask =3D 0x1f
Jul 11 10:08:49 |&= nbsp;sdp: dev_t =3D 8:240
Jul 11 10:08:49 = ;| sdp: size =3D 16777216
Jul 11 10:08:49=  | sdp: vendor =3D IBM
Jul 11 10:08:= 49 | sdp: product =3D 2145
Jul 11 10= :08:49 | sdp: rev =3D 0000
Jul 11 10= :08:49 | sdp: h:b:t:l =3D 2:0:0:0
Jul 11&= nbsp;10:08:49 | SCSI target 2:0:0 -> FC&n= bsp;rport 2:0-0
Jul 11 10:08:49 | sdp: tg= t_node_name =3D 0x500507680303ab7c
Jul 11 10:08:49&= nbsp;| sdp: path state =3D running
Jul 11=  10:08:49 | sdp: 8192 cyl, 64 heads,&nb= sp;32 sectors/track, start at 0
<= span style=3D"color: rgb(0, 0, 0); background-color: rgba(0, 0, 0, 0);">Ju= l 11 10:08:49 | sdp: serial =3D 00c0204= 3ab7eXX00
Jul 11 10:08:49 | sdp: get_state
= Jul 11 10:08:49 | sdp: detect_checker =3D&nb= sp;yes (setting: multipath.conf defaults/devices secti= on)
Jul 11 10:08:49 | sdp: path_checker = =3D tur (setting: array autodetected)
Jul 11&n= bsp;10:08:49 | sdp: checker timeout =3D 30&n= bsp;ms (setting: multipath internal)
Jul 11 10= :08:49 | sdp: state =3D up
Jul 11 10= :08:49 | sdp: getuid =3D "/lib/udev/scsi_id = --whitelisted --replace-whitespace --device=3D/dev/%n" (set= ting: multipath.conf defaults/devices section)
Jul = 11 10:08:49 | sdp: using deprecated getuid&n= bsp;callout
Jul 11 10:08:49 | formatted callou= t =3D /lib/udev/scsi_id --whitelisted --replace-whites= pace --device=3D/dev/sdp
Jul 11 10:08:49 | sdp= : uid =3D 36005076300810eadf800000000000155 (callout)<= br>Jul 11 10:08:49 | sdp: detect_prio =3D&nb= sp;yes (setting: multipath.conf defaults/devices secti= on)
Jul 11 10:08:49 | loading /lib64/multipath= /libprioalua.so prioritizer
Jul 11 10:08:49 | = sdp: prio =3D alua (setting: array autodetec= ted)
Jul 11 10:08:49 | sdp: prio args&nbs= p;=3D "" (setting: array autodetected)
Jul 11&= nbsp;10:08:49 | sdp: reported target port gr= oup is 0
Jul 11 10:08:49 | sdp: aas&= nbsp;=3D 00 [active/optimized]
Jul 11 10:08:49 = ;| sdp: alua prio =3D 50
Jul 11 10:0= 8:49 | sdq: udev property ID_WWN whitelisted=
Jul 11 10:08:49 | sdq: mask =3D 0x1= f
Jul 11 10:08:49 | sdq: dev_t =3D 6= 5:0
Jul 11 10:08:49 | sdq: size =3D = 16777216
Jul 11 10:08:49 | sdq: vendor = =3D IBM
Jul 11 10:08:49 | sdq: product&nb= sp;=3D 2145
Jul 11 10:08:49 | sdq: rev&nb= sp;=3D 0000
Jul 11 10:08:49 | sdq: h:b:t:= l =3D 2:0:1:0
Jul 11 10:08:49 | SCSI = ;target 2:0:1 -> FC rport 2:0-1
Jul 11=  10:08:49 | sdq: tgt_node_name =3D 0x5005076= 80303ab7d
Jul 11 10:08:49 | sdq: path sta= te =3D running
Jul 11 10:08:49 | sdq:&nbs= p;8192 cyl, 64 heads, 32 sectors/track, star= t at 0
Jul 11 10:08:49 | sdq: serial=  =3D 00c02043ab7eXX00
Jul 11 10:08:49 | s= dq: get_state
Jul 11 10:08:49 | sdq: dete= ct_checker =3D yes (setting: multipath.conf defau= lts/devices section)
Jul 11 10:08:49 | sdq:&nb= sp;path_checker =3D tur (setting: array autodetec= ted)
Jul 11 10:08:49 | sdq: checker timeo= ut =3D 30 ms (setting: multipath internal)Jul 11 10:08:49 | sdq: state =3D upJul 11 10:08:49 | sdq: getuid =3D "/l= ib/udev/scsi_id --whitelisted --replace-whitespace --device= =3D/dev/%n" (setting: multipath.conf defaults/devices = section)
Jul 11 10:08:49 | sdq: using dep= recated getuid callout
Jul 11 10:08:49 | = formatted callout =3D /lib/udev/scsi_id --whitelisted&= nbsp;--replace-whitespace --device=3D/dev/sdq
Jul 11 10:= 08:49 | sdq: uid =3D 36005076300810eadf8000000000= 00155 (callout)
Jul 11 10:08:49 | sdq: de= tect_prio =3D yes (setting: multipath.conf defaul= ts/devices section)
Jul 11 10:08:49 | sdq:&nbs= p;prio =3D alua (setting: array autodetected)
=
Jul 11 10:08:49 | sdq: prio = ;args =3D "" (setting: array autodetected)
Jul=  11 10:08:49 | sdq: reported target por= t group is 1
Jul 11 10:08:49 | sdq:&= nbsp;aas =3D 01 [active/non-optimized]
Jul 11 = 10:08:49 | sdq: alua prio =3D 10
Jul = ;11 10:08:49 | dm-0: blacklisted, udev prope= rty missing
Jul 11 10:08:49 | dm-1: black= listed, udev property missing
Jul 11 10:08:49&= nbsp;| dm-2: blacklisted, udev property missingJul 11 10:08:49 | dm-3: blacklisted, udev&= nbsp;property missing
=3D=3D=3D=3D=3D paths list = =3D=3D=3D=3D=3D
uuid        &nb= sp;            = ;         hcil  &nb= sp; dev dev_t pri dm_st chk_st vend/prod
= 36005076300810eadf800000000000155 2:0:0:0 sdp 8:240 50=   undef undef  IBM,2145
36005076300810eadf8000= 00000000155 2:0:1:0 sdq 65:0  10  undef=  undef  IBM,2145
Jul 11 10:08:49 | p= arams =3D 2 queue_if_no_path retain_attached_hw_handle= r 1 alua 2 1 service-time 0 1 2&nb= sp;8:240 1 1 service-time 0 1 2 65:0&nb= sp;1 1
Jul 11 10:08:49 | status =3D = 2 0 1 0 2 1 A 0 1 2 8:24= 0 A 5 0 1 E 0 1 2 65:0 A=  6 0 1
Jul 11 10:08:49 | 36005076300= 810eadf800000000000156: disassemble map [2 queue_if_no= _path retain_attached_hw_handler 1 alua 2 1 = service-time 0 1 2 8:240 1 1 service-ti= me 0 1 2 65:0 1 1 ]
Jul 11 = ;10:08:49 | 8:240: path wwid appears to = ;have changed. Using map wwid.

Jul 11 = ;10:08:49 | 65:0: path wwid appears to = have changed. Using map wwid.

Jul 11 = 10:08:49 | 36005076300810eadf800000000000156: disassemble&n= bsp;status [2 0 1 0 2 1 A 0 1=  2 8:240 A 5 0 1 E 0 1 2=  65:0 A 6 0 1 ]
Jul 11 10:08:49=  | sdp: udev property ID_WWN whitelisted
= Jul 11 10:08:49 | sdq: udev property ID= _WWN whitelisted
Jul 11 10:08:49 | tur ch= ecker refcount 2
Jul 11 10:08:49 | alua&n= bsp;prioritizer refcount 2
Jul 11 10:08:49 |&n= bsp;tur checker refcount 1
Jul 11 10:08:49&nbs= p;| alua prioritizer refcount 1
Jul 11 10= :08:49 | unloading alua prioritizer
Jul 11&nbs= p;10:08:49 | unloading const prioritizer
Jul 1= 1 10:08:49 | unloading tur checker
=0A
liuqing@huayun.com
=0A
=0A
> Dear list,
=0A
> W= e have a FC storage and using multipathd to manager the FC paths.
=0A=
> I've met an issue in this environment. The following is how to=0A
> recreate the issue.
=0A
 
=0A
Whic= h version of multipath-tools have you been using? Could you please
= =0A
run multipathd with "-v 3" and provide the logs of the procedure b= elow?
=0A
 
=0A
Is there a specific reason why you = are using the "getuid_callout"
=0A
option rather than "uid_attrib= ute"?
=0A
 
=0A
Regards,
=0A
Martin
= =0A
 
=0A
>
=0A
> =3D=3D=3D=3D=3D=3D=3D<= /div>=0A
> 1. Map a LUN to host with LUN ID 0,
=0A
> 2.= rescan fc_host, a new path will be found by multipath.
=0A
> = 3. Unmap LUN 0.  path will failed as following.
=0A
> [ro= ot@localhost sys]# multipath -ll
=0A
> Jul 10 18:41:50 | sdp: = couldn't get asymmetric access state
=0A
> Jul 10 18:41:50 | s= dq: couldn't get asymmetric access state
=0A
> 36005076300810e= adf800000000000156 dm-3 IBM,2145
=0A
> size=3D8.0G features=3D= '2 queue_if_no_path retain_attached_hw_handler' hw
=0A
> handl= er=3D'1 alua' wp=3Drw
=0A
> |-+- policy=3D'service-time 0' pri= o=3D0 status=3Denabled
=0A
> | `- 2:0:0:0 sdp 8:240 failed fau= lty running
=0A
> `-+- policy=3D'service-time 0' prio=3D0 stat= us=3Denabled
=0A
>   `- 2:0:1:0 sdq 65:0  faile= d faulty running
=0A
> 4. Map another LUN which have different= ID_SERIAL but with the same
=0A
> LUN ID(0). Multipath(check_= path function) will set the paths up, tur
=0A
> checker will s= uccessfully test the LUN.
=0A
> [root@localhost sys]# /lib/ud= ev/scsi_id --whitelisted --replace-
=0A
> whitespace --device= =3D/dev/mapper/36005076300810eadf800000000000156
=0A
> 3600507= 6300810eadf800000000000155
=0A
>  I think this is not rig= ht, although I do not remove the device by
=0A
> 'echo 1> /= sys/block/sdp/device/delete'. A multipath is identified by
=0A
&g= t; LUN scsi ID, in this situation the multipath
=0A
> ID is no= t equal to LUN scsi ID. And if I add the previous LUN back,
=0A
&= gt; the paths will also be added to that multipath
=0A
> id(36= 005076300810eadf800000000000156).
=0A
>
=0A
> Any= suggestion on how to make it create a new node in /dev with
=0A
= > correct scsi ID? Thanks.
=0A
>
=0A
>
= =0A
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=0A
> [root@loc= alhost sys]# cat /etc/multipath.conf
=0A
> defaults {
=0A=
>     features "0"
=0A
> &nbs= p;   no_path_retry       &nbs= p;   queue
=0A
>     getuid_call= out "/lib/udev/scsi_id --whitelisted --replace-
=0A
> whitespa= ce --device=3D/dev/%n"
=0A
> }
=0A
> blacklist {=0A
>     devnode "sd[a-m]"
=0A
&g= t; }
=0A
>
=0A
> liuqing@huayun.com
=0A
= > --
=0A
> dm-devel mailing list
=0A
> dm-devel= @redhat.com
=0A
> https://www.redhat.com/mailman/listinfo/dm-d= evel
=0A
 
=0A
--
=0A
Dr. Martin Wilck &l= t;mwilck@suse.com>, Tel. +49 (0)911 74053 2107
=0A
SUSE Linux = GmbH, GF: Felix Imend=C3=B6rffer, Jane Smithard, Graham Norton
=0AHRB 21284 (AG N=C3=BCrnberg)
=0A
 
=0A
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