From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fil Subject: Re: [PATCH 0/3][RESEND]multipath-tools: mpathpersist utility for managing persistent reservation on dm multipath device. Date: Wed, 25 Jan 2012 10:42:11 -0500 Message-ID: <4F2022D3.2070609@internyc.net> References: <4F197EEB.3050805@internyc.net> <4F1E4785.7010806@internyc.net> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: "Chauhan, Vijay" Cc: "Dachepalli, Sudhir" , "Moger, Babu" , "Stankey, Robert" , "dm-devel@redhat.com" List-Id: dm-devel.ids Here is the info you requested. thanks fil On 01/25/2012 02:45 AM, Chauhan, Vijay wrote: > On January 24, 2012, Fil Wrote: >> >> 1. Patches apply against the 63704387009443bdb37d9deaaafa9ab121d45bfb >> without any problems. Everything builds correctly (tested it on centos >> 6.2 and fedora 16). >> >> 2. multipathd runs correctly. >> > = > Fil, Thanks for the update. Good to know. > = >> 3. mpathpersist is missing --no-inquiry option. It would be nice to be >> compatible with sg_persist. (breaks most of my test scripts.) >> >> 4. mpathpersist -d /dev/mapper/blah --in --read-status >> mpathpersist: unrecognized option '--read-status' >> unrecognised switch code 0x3f ?? >> > = > There is a typo in usage output. Please use --read-full-status instead. I= will correct it. = still no go... mpathpersist -d /dev/mapper/blah --in --read-full-status Persistent Reserve IN command failed mpathpersist -d /dev/mapper/blah --in --read-full-status -v3 Jan 25 10:32:37 | alias =3D blah Jan 25 10:32:37 | ram0: device node name blacklisted Jan 25 10:32:37 | ram1: device node name blacklisted Jan 25 10:32:37 | ram2: device node name blacklisted Jan 25 10:32:37 | ram3: device node name blacklisted Jan 25 10:32:37 | ram4: device node name blacklisted Jan 25 10:32:37 | ram5: device node name blacklisted Jan 25 10:32:37 | ram6: device node name blacklisted Jan 25 10:32:37 | ram7: device node name blacklisted Jan 25 10:32:37 | ram8: device node name blacklisted Jan 25 10:32:37 | ram9: device node name blacklisted Jan 25 10:32:37 | ram10: device node name blacklisted Jan 25 10:32:37 | ram11: device node name blacklisted Jan 25 10:32:37 | ram12: device node name blacklisted Jan 25 10:32:37 | ram13: device node name blacklisted Jan 25 10:32:37 | ram14: device node name blacklisted Jan 25 10:32:37 | ram15: device node name blacklisted Jan 25 10:32:37 | loop0: device node name blacklisted Jan 25 10:32:37 | loop1: device node name blacklisted Jan 25 10:32:37 | loop2: device node name blacklisted Jan 25 10:32:37 | loop3: device node name blacklisted Jan 25 10:32:37 | loop4: device node name blacklisted Jan 25 10:32:37 | loop5: device node name blacklisted Jan 25 10:32:37 | loop6: device node name blacklisted Jan 25 10:32:37 | loop7: device node name blacklisted Jan 25 10:32:37 | vda: device node name blacklisted Jan 25 10:32:37 | dm-0: device node name blacklisted Jan 25 10:32:37 | dm-1: device node name blacklisted Jan 25 10:32:37 | dm-2: device node name blacklisted Jan 25 10:32:37 | dm-3: device node name blacklisted Jan 25 10:32:37 | sda: not found in pathvec Jan 25 10:32:37 | sda: mask =3D 0x5 Jan 25 10:32:37 | sda: dev_t =3D 8:0 Jan 25 10:32:37 | sda: size =3D 20971520 Jan 25 10:32:37 | sda: vendor =3D QNAP Jan 25 10:32:37 | sda: product =3D iSCSI Storage Jan 25 10:32:37 | sda: rev =3D 3.1 Jan 25 10:32:37 | sda: h:b:t:l =3D 16:0:0:0 Jan 25 10:32:37 | sda: tgt_node_name =3D iqn.2004-04.com.qnap:ts-459proii:iscsi.blah.cb4d16 Jan 25 10:32:37 | sda: path state =3D running Jan 25 10:32:37 | sda: get_state Jan 25 10:32:37 | loading /lib64/multipath/libcheckdirectio.so checker Jan 25 10:32:37 | sda: path checker =3D directio (controller setting) Jan 25 10:32:37 | sda: checker timeout =3D 30000 ms (sysfs setting) Jan 25 10:32:37 | directio: starting new request Jan 25 10:32:37 | directio: io finished 4096/0 Jan 25 10:32:37 | sda: state =3D up Jan 25 10:32:37 | dm-4: device node name blacklisted Jan 25 10:32:37 | sdb: not found in pathvec Jan 25 10:32:37 | sdb: mask =3D 0x5 Jan 25 10:32:37 | sdb: dev_t =3D 8:16 Jan 25 10:32:37 | sdb: size =3D 20971520 Jan 25 10:32:37 | sdb: vendor =3D QNAP Jan 25 10:32:37 | sdb: product =3D iSCSI Storage Jan 25 10:32:37 | sdb: rev =3D 3.1 Jan 25 10:32:37 | sdb: h:b:t:l =3D 17:0:0:0 Jan 25 10:32:37 | sdb: tgt_node_name =3D iqn.2004-04.com.qnap:ts-459proii:iscsi.blah.cb4d16 Jan 25 10:32:37 | sdb: path state =3D running Jan 25 10:32:37 | sdb: get_state Jan 25 10:32:37 | sdb: path checker =3D directio (controller setting) Jan 25 10:32:37 | sdb: checker timeout =3D 30000 ms (sysfs setting) Jan 25 10:32:37 | directio: starting new request Jan 25 10:32:37 | directio: io finished 18446744073709551611/0 Jan 25 10:32:37 | sdb: state =3D down Jan 25 10:32:37 | sdb: checker msg is "directio checker reports path is down" Jan 25 10:32:37 | params =3D 0 0 1 1 round-robin 0 2 1 8:0 1 8:16 1 Jan 25 10:32:37 | status =3D 2 0 0 0 1 1 A 0 2 0 8:0 A 0 8:16 F 2 Jan 25 10:32:37 | blah: disassemble map [0 0 1 1 round-robin 0 2 1 8:0 1 8:16 1 ] Jan 25 10:32:37 | sda: mask =3D 0x8 Jan 25 10:32:37 | sda: path state =3D running Jan 25 10:32:37 | loading /lib64/multipath/libprioconst.so prioritizer Jan 25 10:32:37 | sda: prio =3D const (internal default) Jan 25 10:32:37 | sda: prio =3D (internal default) Jan 25 10:32:37 | sda: const prio =3D 1 Jan 25 10:32:37 | sdb: mask =3D 0x8 Jan 25 10:32:37 | sdb: path state =3D running Jan 25 10:32:37 | sdb: prio =3D const (internal default) Jan 25 10:32:37 | sdb: prio =3D (internal default) Jan 25 10:32:37 | sdb: const prio =3D 1 Jan 25 10:32:37 | blah: disassemble status [2 0 0 0 1 1 A 0 2 0 8:0 A 0 8:16 F 2 ] Jan 25 10:32:37 | 36001405c55fc03cd8193d491eda0d4d7: sending pr in command to sda Jan 25 10:32:37 | sda: duration =3D 2 (ms) Jan 25 10:32:37 | sda: status driver:00 host:04 scsi:00 Jan 25 10:32:37 | directio checker refcount 2 Jan 25 10:32:37 | directio checker refcount 1 Persistent Reserve IN command failed Jan 25 10:32:37 | unloading const prioritizer Jan 25 10:32:37 | unloading directio checker > = >> 5. registration works >> >> 6. reservation, reserves only a single path. (is this by design?) > = > Yes, this is as per design. Reservation is sent to one of the active = > path and reservation is applicable to registered I_T nexus with respect t= o pr type. > = > I was expecting your device server to apply reservation to all the = > registered I_T nexus for pr type "Exclusive Access, all registrants". Can= you verify the below output again? > = > Please see below in SPC4 > "For a persistent reservation of the type Write Exclusive =96 All Registr= ants or Exclusive Access =96 All Registrants, > the persistent reservation holder is any registered I_T nexus;" = > = >> mpathpersist --out --reserve --param-rk=3D123abc --prout-type=3D8 -d >> /dev/mapper/blah >> >> sg_persist -i -s /dev/mapper/blah >> QNAP iSCSI Storage 3.1 >> Peripheral device type: disk >> PR generation=3D0x8 >> Key=3D0x123abc >> All target ports bit clear >> Relative port address: 0x1 >> not reservation holder >> Transport Id of initiator: >> iSCSI name and session id: iqn.2009- >> 11.com.adriaticsolutions:blah >> Key=3D0x123abc >> All target ports bit clear >> Relative port address: 0x1 >> << Reservation holder >> >> scope: LU_SCOPE, type: Exclusive Access, all registrants >> Transport Id of initiator: >> iSCSI name and session id: iqn.2009- >> 11.com.adriaticsolutions:blah >> >> multipath -ll >> blah (36001405c55fc03cd8193d491eda0d4d7) dm-4 QNAP,iSCSI Storage >> size=3D10G features=3D'0' hwhandler=3D'0' wp=3Drw >> `-+- policy=3D'round-robin 0' prio=3D1 status=3Dactive >> |- 16:0:0:0 sda 8:0 active ready running >> `- 17:0:0:0 sdb 8:16 failed faulty running >> >> 7. mpathpersist -d /dev/mapper/blah --in --read-reservation >> Persistent Reserve IN command failed >> > Can you please share the output with verbose 3. Append '-v3'. mpathpersist -d /dev/mapper/blah --in --read-reservation Persistent Reserve IN command failed mpathpersist -d /dev/mapper/blah --in --read-reservation -v3 Jan 25 10:34:07 | alias =3D blah Jan 25 10:34:07 | ram0: device node name blacklisted Jan 25 10:34:07 | ram1: device node name blacklisted Jan 25 10:34:07 | ram2: device node name blacklisted Jan 25 10:34:07 | ram3: device node name blacklisted Jan 25 10:34:07 | ram4: device node name blacklisted Jan 25 10:34:07 | ram5: device node name blacklisted Jan 25 10:34:07 | ram6: device node name blacklisted Jan 25 10:34:07 | ram7: device node name blacklisted Jan 25 10:34:07 | ram8: device node name blacklisted Jan 25 10:34:07 | ram9: device node name blacklisted Jan 25 10:34:07 | ram10: device node name blacklisted Jan 25 10:34:07 | ram11: device node name blacklisted Jan 25 10:34:07 | ram12: device node name blacklisted Jan 25 10:34:07 | ram13: device node name blacklisted Jan 25 10:34:07 | ram14: device node name blacklisted Jan 25 10:34:07 | ram15: device node name blacklisted Jan 25 10:34:07 | loop0: device node name blacklisted Jan 25 10:34:07 | loop1: device node name blacklisted Jan 25 10:34:07 | loop2: device node name blacklisted Jan 25 10:34:07 | loop3: device node name blacklisted Jan 25 10:34:07 | loop4: device node name blacklisted Jan 25 10:34:07 | loop5: device node name blacklisted Jan 25 10:34:07 | loop6: device node name blacklisted Jan 25 10:34:07 | loop7: device node name blacklisted Jan 25 10:34:07 | vda: device node name blacklisted Jan 25 10:34:07 | dm-0: device node name blacklisted Jan 25 10:34:07 | dm-1: device node name blacklisted Jan 25 10:34:07 | dm-2: device node name blacklisted Jan 25 10:34:07 | dm-3: device node name blacklisted Jan 25 10:34:07 | sda: not found in pathvec Jan 25 10:34:07 | sda: mask =3D 0x5 Jan 25 10:34:07 | sda: dev_t =3D 8:0 Jan 25 10:34:07 | sda: size =3D 20971520 Jan 25 10:34:07 | sda: vendor =3D QNAP Jan 25 10:34:07 | sda: product =3D iSCSI Storage Jan 25 10:34:07 | sda: rev =3D 3.1 Jan 25 10:34:07 | sda: h:b:t:l =3D 16:0:0:0 Jan 25 10:34:07 | sda: tgt_node_name =3D iqn.2004-04.com.qnap:ts-459proii:iscsi.blah.cb4d16 Jan 25 10:34:07 | sda: path state =3D running Jan 25 10:34:07 | sda: get_state Jan 25 10:34:07 | loading /lib64/multipath/libcheckdirectio.so checker Jan 25 10:34:07 | sda: path checker =3D directio (controller setting) Jan 25 10:34:07 | sda: checker timeout =3D 30000 ms (sysfs setting) Jan 25 10:34:07 | directio: starting new request Jan 25 10:34:07 | directio: io finished 4096/0 Jan 25 10:34:07 | sda: state =3D up Jan 25 10:34:07 | dm-4: device node name blacklisted Jan 25 10:34:07 | sdb: not found in pathvec Jan 25 10:34:07 | sdb: mask =3D 0x5 Jan 25 10:34:07 | sdb: dev_t =3D 8:16 Jan 25 10:34:07 | sdb: size =3D 20971520 Jan 25 10:34:07 | sdb: vendor =3D QNAP Jan 25 10:34:07 | sdb: product =3D iSCSI Storage Jan 25 10:34:07 | sdb: rev =3D 3.1 Jan 25 10:34:07 | sdb: h:b:t:l =3D 17:0:0:0 Jan 25 10:34:07 | sdb: tgt_node_name =3D iqn.2004-04.com.qnap:ts-459proii:iscsi.blah.cb4d16 Jan 25 10:34:07 | sdb: path state =3D running Jan 25 10:34:07 | sdb: get_state Jan 25 10:34:07 | sdb: path checker =3D directio (controller setting) Jan 25 10:34:07 | sdb: checker timeout =3D 30000 ms (sysfs setting) Jan 25 10:34:07 | directio: starting new request Jan 25 10:34:07 | directio: io finished 18446744073709551611/0 Jan 25 10:34:07 | sdb: state =3D down Jan 25 10:34:07 | sdb: checker msg is "directio checker reports path is down" Jan 25 10:34:07 | params =3D 0 0 1 1 round-robin 0 2 1 8:0 1 8:16 1 Jan 25 10:34:07 | status =3D 2 0 0 0 1 1 A 0 2 0 8:0 A 0 8:16 F 2 Jan 25 10:34:07 | blah: disassemble map [0 0 1 1 round-robin 0 2 1 8:0 1 8:16 1 ] Jan 25 10:34:07 | sda: mask =3D 0x8 Jan 25 10:34:07 | sda: path state =3D running Jan 25 10:34:07 | loading /lib64/multipath/libprioconst.so prioritizer Jan 25 10:34:07 | sda: prio =3D const (internal default) Jan 25 10:34:07 | sda: prio =3D (internal default) Jan 25 10:34:07 | sda: const prio =3D 1 Jan 25 10:34:07 | sdb: mask =3D 0x8 Jan 25 10:34:07 | sdb: path state =3D running Jan 25 10:34:07 | sdb: prio =3D const (internal default) Jan 25 10:34:07 | sdb: prio =3D (internal default) Jan 25 10:34:07 | sdb: const prio =3D 1 Jan 25 10:34:07 | blah: disassemble status [2 0 0 0 1 1 A 0 2 0 8:0 A 0 8:16 F 2 ] Jan 25 10:34:07 | 36001405c55fc03cd8193d491eda0d4d7: sending pr in command to sda Jan 25 10:34:07 | sda: duration =3D 1 (ms) Jan 25 10:34:07 | sda: status driver:00 host:04 scsi:00 Jan 25 10:34:07 | directio checker refcount 2 Jan 25 10:34:07 | directio checker refcount 1 Persistent Reserve IN command failed Jan 25 10:34:07 | unloading const prioritizer Jan 25 10:34:07 | unloading directio checker > = >> 8. release 'fails' because reservation registered only a single path and >> the other one is in a failed state. >> >> mpathpersist -d /dev/mapper/blah --out --release --param-rk=3D123abc >> --prout-type=3D8 >> Jan 24 00:43:53 | 36001405c55fc03cd8193d491eda0d4d7: pr in read >> reservation command failed. >> PR out: command failed >> > As per design, release service action performs following steps: = > Step 1) PROUT 'release' SA is sent on the all paths of the multipath devi= ce as it is not clear which data path is reservation holder. > STEP 2) PRIN read reservation SA is sent to one of the active path to ver= ify the reservation. > STEP 3) If the Read Reservation parameter data indicates that the logical= unit is still reserved then this indicates that the reservation holder bel= ongs to a data path in failed state or removed data path of the multipath d= evice, continue else goto step 7 > STEP 4) PRIN Report Full Status service action is issued to any active d= ata path. Full status descriptors are saved. > STEP 5) PROUT clear reservation service action is sent via any active dat= a path to clear the reservation and > Registrants > STEP 6) all registrants are restored by issuing PROUT register service ac= tion with transport IDs from the full status > descriptors saved in the step 4 > STEP 7) exit with status > = > It looks like you are getting into some other issue. Can you please share= the output with verbose with '-v3'. mpathpersist -d /dev/mapper/blah --out --release --param-rk=3D123abc --prout-type=3D8 -v3 Jan 25 10:35:41 | alias =3D blah Jan 25 10:35:41 | ram0: device node name blacklisted Jan 25 10:35:41 | ram1: device node name blacklisted Jan 25 10:35:41 | ram2: device node name blacklisted Jan 25 10:35:41 | ram3: device node name blacklisted Jan 25 10:35:41 | ram4: device node name blacklisted Jan 25 10:35:41 | ram5: device node name blacklisted Jan 25 10:35:41 | ram6: device node name blacklisted Jan 25 10:35:41 | ram7: device node name blacklisted Jan 25 10:35:41 | ram8: device node name blacklisted Jan 25 10:35:41 | ram9: device node name blacklisted Jan 25 10:35:41 | ram10: device node name blacklisted Jan 25 10:35:41 | ram11: device node name blacklisted Jan 25 10:35:41 | ram12: device node name blacklisted Jan 25 10:35:41 | ram13: device node name blacklisted Jan 25 10:35:41 | ram14: device node name blacklisted Jan 25 10:35:41 | ram15: device node name blacklisted Jan 25 10:35:41 | loop0: device node name blacklisted Jan 25 10:35:41 | loop1: device node name blacklisted Jan 25 10:35:41 | loop2: device node name blacklisted Jan 25 10:35:41 | loop3: device node name blacklisted Jan 25 10:35:41 | loop4: device node name blacklisted Jan 25 10:35:41 | loop5: device node name blacklisted Jan 25 10:35:41 | loop6: device node name blacklisted Jan 25 10:35:41 | loop7: device node name blacklisted Jan 25 10:35:41 | vda: device node name blacklisted Jan 25 10:35:41 | dm-0: device node name blacklisted Jan 25 10:35:41 | dm-1: device node name blacklisted Jan 25 10:35:41 | dm-2: device node name blacklisted Jan 25 10:35:41 | dm-3: device node name blacklisted Jan 25 10:35:41 | sda: not found in pathvec Jan 25 10:35:41 | sda: mask =3D 0x5 Jan 25 10:35:41 | sda: dev_t =3D 8:0 Jan 25 10:35:41 | sda: size =3D 20971520 Jan 25 10:35:41 | sda: vendor =3D QNAP Jan 25 10:35:41 | sda: product =3D iSCSI Storage Jan 25 10:35:41 | sda: rev =3D 3.1 Jan 25 10:35:41 | sda: h:b:t:l =3D 16:0:0:0 Jan 25 10:35:41 | sda: tgt_node_name =3D iqn.2004-04.com.qnap:ts-459proii:iscsi.blah.cb4d16 Jan 25 10:35:41 | sda: path state =3D running Jan 25 10:35:41 | sda: get_state Jan 25 10:35:41 | loading /lib64/multipath/libcheckdirectio.so checker Jan 25 10:35:41 | sda: path checker =3D directio (controller setting) Jan 25 10:35:41 | sda: checker timeout =3D 30000 ms (sysfs setting) Jan 25 10:35:41 | directio: starting new request Jan 25 10:35:41 | directio: io finished 4096/0 Jan 25 10:35:41 | sda: state =3D up Jan 25 10:35:41 | dm-4: device node name blacklisted Jan 25 10:35:41 | sdb: not found in pathvec Jan 25 10:35:41 | sdb: mask =3D 0x5 Jan 25 10:35:41 | sdb: dev_t =3D 8:16 Jan 25 10:35:41 | sdb: size =3D 20971520 Jan 25 10:35:41 | sdb: vendor =3D QNAP Jan 25 10:35:41 | sdb: product =3D iSCSI Storage Jan 25 10:35:41 | sdb: rev =3D 3.1 Jan 25 10:35:41 | sdb: h:b:t:l =3D 17:0:0:0 Jan 25 10:35:41 | sdb: tgt_node_name =3D iqn.2004-04.com.qnap:ts-459proii:iscsi.blah.cb4d16 Jan 25 10:35:41 | sdb: path state =3D running Jan 25 10:35:41 | sdb: get_state Jan 25 10:35:41 | sdb: path checker =3D directio (controller setting) Jan 25 10:35:41 | sdb: checker timeout =3D 30000 ms (sysfs setting) Jan 25 10:35:41 | directio: starting new request Jan 25 10:35:41 | directio: io finished 18446744073709551611/0 Jan 25 10:35:41 | sdb: state =3D down Jan 25 10:35:41 | sdb: checker msg is "directio checker reports path is down" Jan 25 10:35:41 | params =3D 0 0 1 1 round-robin 0 2 1 8:0 1 8:16 1 Jan 25 10:35:41 | status =3D 2 0 0 0 1 1 A 0 2 0 8:0 A 0 8:16 F 2 Jan 25 10:35:41 | blah: disassemble map [0 0 1 1 round-robin 0 2 1 8:0 1 8:16 1 ] Jan 25 10:35:41 | sda: mask =3D 0x8 Jan 25 10:35:41 | sda: path state =3D running Jan 25 10:35:41 | loading /lib64/multipath/libprioconst.so prioritizer Jan 25 10:35:41 | sda: prio =3D const (internal default) Jan 25 10:35:41 | sda: prio =3D (internal default) Jan 25 10:35:41 | sda: const prio =3D 1 Jan 25 10:35:41 | sdb: mask =3D 0x8 Jan 25 10:35:41 | sdb: path state =3D running Jan 25 10:35:41 | sdb: prio =3D const (internal default) Jan 25 10:35:41 | sdb: prio =3D (internal default) Jan 25 10:35:41 | sdb: const prio =3D 1 Jan 25 10:35:41 | blah: disassemble status [2 0 0 0 1 1 A 0 2 0 8:0 A 0 8:16 F 2 ] Jan 25 10:35:41 | blah: reservation_key =3D 0x123abc (config file default) Jan 25 10:35:41 | path count =3D 0 Jan 25 10:35:41 | rq_servact=3D2 Jan 25 10:35:41 | rq_scope=3D0 Jan 25 10:35:41 | rq_type=3D8 Jan 25 10:35:41 | noisy=3D1 Jan 25 10:35:41 | status=3D-1 Jan 25 10:35:41 | 36001405c55fc03cd8193d491eda0d4d7: sending pr out command to sda Jan 25 10:35:41 | 36001405c55fc03cd8193d491eda0d4d7: sdb path not up. Jan 25 10:35:41 | sda: rq_servact =3D 2 Jan 25 10:35:41 | sda: rq_scope =3D 0 Jan 25 10:35:41 | sda: rq_type =3D 8 Jan 25 10:35:41 | sda: paramlen =3D 24 Jan 25 10:35:41 | sda: Persistent Reservation OUT parameter: Jan 25 10:35:41 | 00 00 00 00 00 12 3a bc 00 00 00 00 00 00 00 00 Jan 25 10:35:41 | 00 00 00 00 00 00 00 00 Jan 25 10:35:41 | sda: Duration=3D1 (ms) Jan 25 10:35:41 | sda: status driver:00 host:00 scsi:00 Jan 25 10:35:41 | sda: status =3D 0 Jan 25 10:35:41 | 36001405c55fc03cd8193d491eda0d4d7: sending pr in command to sda Jan 25 10:35:41 | sda: duration =3D 1 (ms) Jan 25 10:35:41 | sda: status driver:08 host:00 scsi:02 Jan 25 10:35:41 | sda: Sense_Key=3D06, ASC=3D00 ASCQ=3D00 Jan 25 10:35:41 | sda: retrying for Unit Attention. Remaining retries =3D 4 Jan 25 10:35:41 | sda: duration =3D 0 (ms) Jan 25 10:35:41 | sda: status driver:00 host:04 scsi:00 Jan 25 10:35:41 | 36001405c55fc03cd8193d491eda0d4d7: pr in read reservation command failed. Jan 25 10:35:41 | directio checker refcount 2 Jan 25 10:35:41 | directio checker refcount 1 PR out: command failed Jan 25 10:35:41 | unloading const prioritizer Jan 25 10:35:41 | unloading directio checker > = >> 9. de-registration works.... >> >> I haven't had time to test path fail over and weird cases when multiple >> nodes try to do destructive things to the shared luns... >> >> thanks >> fil >> >> On 01/23/2012 11:09 PM, Chauhan, Vijay wrote: >>> Thanks for these info Fil. Can you please also share your feedback on >> your in-depth testing. >>> >>> I appreciate your effort. >>> >>> On January 20, 2012, Fil wrote: >>>> Thanks for the patches Vijay, >>>> >>>> I tested the new set of patches against the git repo, and it applied >>>> cleanly compiled and is running as expected. I will do more indepth >>>> testing over the weekend. > = > Thanks for your detailed testing. > = > Thanks and regards, > Vijay > =