XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!

CitrixNewbJD

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

Then use a command like this to get just the end of the main log file:
tail -n 100 messages

Dec 27 10:23:04 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: sdh - rdac checker reports path is up
Dec 27 10:23:04 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:04 xen1 multipathd: 8:112: reinstated
Dec 27 10:23:04 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: queue_if_no_path enabled
Dec 27 10:23:04 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Recovered to normal mode
Dec 27 10:23:04 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 1
Dec 27 10:23:04 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: switch to path group #2
Dec 27 10:23:05 xen1 kernel: [ 6268.202264] sd 5:0:0:3: [sdh] Unhandled sense code
Dec 27 10:23:05 xen1 kernel: [ 6268.202267] sd 5:0:0:3: [sdh] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Dec 27 10:23:05 xen1 kernel: [ 6268.202269] sd 5:0:0:3: [sdh] Sense Key : Hardware Error [current]
Dec 27 10:23:05 xen1 kernel: [ 6268.202272] sd 5:0:0:3: [sdh] <<vendor>> ASC=0x84 ASCQ=0x0ASC=0x84 ASCQ=0x0
Dec 27 10:23:05 xen1 kernel: [ 6268.202275] sd 5:0:0:3: [sdh] CDB: Read(16): 88 00 00 00 00 01 6e 59 1f 80 00 00 00 08 00 00
Dec 27 10:23:05 xen1 kernel: [ 6268.202282] end_request: I/O error, dev sdh, sector 6146301824
Dec 27 10:23:05 xen1 kernel: [ 6268.202298] device-mapper: multipath: Failing path 8:112.
Dec 27 10:23:05 xen1 multipathd: 8:112: mark as failed
Dec 27 10:23:05 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Entering recovery mode: max_retries=15
Dec 27 10:23:05 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 0
Dec 27 10:23:05 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:05 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: sde - rdac checker reports path is ghost
Dec 27 10:23:05 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:05 xen1 multipathd: 8:64: reinstated
Dec 27 10:23:05 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: queue_if_no_path enabled
Dec 27 10:23:05 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Recovered to normal mode
Dec 27 10:23:05 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 1
Dec 27 10:23:05 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: switch to path group #1
Dec 27 10:23:05 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: sdn - rdac checker reports path is ghost
Dec 27 10:23:05 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:05 xen1 multipathd: 8:208: reinstated
Dec 27 10:23:05 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 2
Dec 27 10:23:05 xen1 kernel: [ 6268.701997] sd 4:0:0:3: rdac: array MDS-Spindle01, ctlr 0, queueing MODE_SELECT command
Dec 27 10:23:06 xen1 kernel: [ 6268.970907] sd 4:0:0:3: rdac: array MDS-Spindle01, ctlr 0, MODE_SELECT completed
Dec 27 10:23:06 xen1 xapi: [ info|xen1|131517 UNIX /var/xapi/xapi|session.login_with_password D:e266c465d84c|xapi] Session.create trackid=cc8a9f3a4e457a8654c34f1b256320d4 pool=false uname=root is_local_superuser=true auth_user_sid= parent=trackid=9834f5af41c964e225f24279aefe4e49
Dec 27 10:23:06 xen1 kernel: [ 6269.499770] sd 7:0:0:3: [sdn] Unhandled sense code
Dec 27 10:23:06 xen1 kernel: [ 6269.499773] sd 7:0:0:3: [sdn] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Dec 27 10:23:06 xen1 kernel: [ 6269.499775] sd 7:0:0:3: [sdn] Sense Key : Hardware Error [current]
Dec 27 10:23:06 xen1 kernel: [ 6269.499778] sd 7:0:0:3: [sdn] <<vendor>> ASC=0x84 ASCQ=0x0ASC=0x84 ASCQ=0x0
Dec 27 10:23:06 xen1 kernel: [ 6269.499781] sd 7:0:0:3: [sdn] CDB: Read(16): 88 00 00 00 00 01 6e 59 1f 80 00 00 00 08 00 00
Dec 27 10:23:06 xen1 kernel: [ 6269.499788] end_request: I/O error, dev sdn, sector 6146301824
Dec 27 10:23:06 xen1 kernel: [ 6269.499805] device-mapper: multipath: Failing path 8:208.
Dec 27 10:23:06 xen1 multipathd: 8:208: mark as failed
Dec 27 10:23:06 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 1
Dec 27 10:23:06 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:07 xen1 kernel: [ 6270.032558] sd 4:0:0:3: [sde] Unhandled sense code
Dec 27 10:23:07 xen1 kernel: [ 6270.032562] sd 4:0:0:3: [sde] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Dec 27 10:23:07 xen1 kernel: [ 6270.032566] sd 4:0:0:3: [sde] Sense Key : Hardware Error [current]
Dec 27 10:23:07 xen1 kernel: [ 6270.032571] sd 4:0:0:3: [sde] <<vendor>> ASC=0x84 ASCQ=0x0ASC=0x84 ASCQ=0x0
Dec 27 10:23:07 xen1 kernel: [ 6270.032577] sd 4:0:0:3: [sde] CDB: Read(16): 88 00 00 00 00 01 6e 59 1f 80 00 00 00 08 00 00
Dec 27 10:23:07 xen1 kernel: [ 6270.032589] end_request: I/O error, dev sde, sector 6146301824
Dec 27 10:23:07 xen1 kernel: [ 6270.032610] device-mapper: multipath: Failing path 8:64.
Dec 27 10:23:07 xen1 xapi: [ info|xen1|131545 UNIX /var/xapi/xapi|session.login_with_password D:d69e66c86e06|xapi] Session.create trackid=39eeefd838b77788b3ccc71c51581cd6 pool=false uname=root is_local_superuser=true auth_user_sid= parent=trackid=9834f5af41c964e225f24279aefe4e49
Dec 27 10:23:07 xen1 multipathd: 8:64: mark as failed
Dec 27 10:23:07 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Entering recovery mode: max_retries=15
Dec 27 10:23:07 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 0
Dec 27 10:23:07 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:08 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Entering recovery mode: max_retries=15
Dec 27 10:23:08 xen1 ntpd[6793]: sendto(208.75.88.4) (fd=18): Invalid argument
Dec 27 10:23:08 xen1 xapi: [ info|xen1|131573 UNIX /var/xapi/xapi|session.login_with_password D:b7fd4c2e410c|xapi] Session.create trackid=4706ed452324a154ea9a85d6841d8507 pool=false uname=root is_local_superuser=true auth_user_sid= parent=trackid=9834f5af41c964e225f24279aefe4e49
Dec 27 10:23:09 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: sdk - rdac checker reports path is ghost
Dec 27 10:23:09 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:09 xen1 multipathd: 8:160: reinstated
Dec 27 10:23:09 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: queue_if_no_path enabled
Dec 27 10:23:09 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Recovered to normal mode
Dec 27 10:23:09 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 1
Dec 27 10:23:09 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: switch to path group #3
Dec 27 10:23:09 xen1 kernel: [ 6271.802004] sd 6:0:0:3: rdac: array MDS-Spindle01, ctlr 1, queueing MODE_SELECT command
Dec 27 10:23:09 xen1 xapi: [ info|xen1|131597 UNIX /var/xapi/xapi|session.login_with_password D:f77b1779ddc8|xapi] Session.create trackid=85bc3f2b6b5d775d09f80b9eba992380 pool=false uname=root is_local_superuser=true auth_user_sid= parent=trackid=9834f5af41c964e225f24279aefe4e49
Dec 27 10:23:09 xen1 kernel: [ 6272.077698] sd 6:0:0:3: rdac: array MDS-Spindle01, ctlr 1, MODE_SELECT completed
Dec 27 10:23:09 xen1 kernel: [ 6272.597687] sd 6:0:0:3: [sdk] Unhandled sense code
Dec 27 10:23:09 xen1 kernel: [ 6272.597690] sd 6:0:0:3: [sdk] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Dec 27 10:23:09 xen1 kernel: [ 6272.597692] sd 6:0:0:3: [sdk] Sense Key : Hardware Error [current]
Dec 27 10:23:09 xen1 kernel: [ 6272.597695] sd 6:0:0:3: [sdk] <<vendor>> ASC=0x84 ASCQ=0x0ASC=0x84 ASCQ=0x0
Dec 27 10:23:09 xen1 kernel: [ 6272.597699] sd 6:0:0:3: [sdk] CDB: Read(16): 88 00 00 00 00 01 6e 59 1f 80 00 00 00 08 00 00
Dec 27 10:23:09 xen1 kernel: [ 6272.597705] end_request: I/O error, dev sdk, sector 6146301824
Dec 27 10:23:09 xen1 kernel: [ 6272.597722] device-mapper: multipath: Failing path 8:160.
Dec 27 10:23:09 xen1 multipathd: 8:160: mark as failed
Dec 27 10:23:09 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Entering recovery mode: max_retries=15
Dec 27 10:23:09 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 0
Dec 27 10:23:09 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:10 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Entering recovery mode: max_retries=15
Dec 27 10:23:10 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: sdh - rdac checker reports path is up
Dec 27 10:23:10 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:10 xen1 multipathd: 8:112: reinstated
Dec 27 10:23:10 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: queue_if_no_path enabled
Dec 27 10:23:10 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Recovered to normal mode
Dec 27 10:23:10 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 1
Dec 27 10:23:10 xen1 xapi: [ info|xen1|131625 UNIX /var/xapi/xapi|session.login_with_password D:9820afdb1736|xapi] Session.create trackid=e1073887bd1d5f6e1a101d7313609e20 pool=false uname=root is_local_superuser=true auth_user_sid= parent=trackid=9834f5af41c964e225f24279aefe4e49
Dec 27 10:23:10 xen1 xcp-rrdd: [error|xen1|0 monitor|main|rrdd_server] Failed to process plugin: xcp-rrdd-xenpm (Rrdd_server.Plugin.No_update)
Dec 27 10:23:10 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: switch to path group #2
Dec 27 10:23:10 xen1 kernel: [ 6273.763175] sd 5:0:0:3: [sdh] Unhandled sense code
Dec 27 10:23:10 xen1 kernel: [ 6273.763179] sd 5:0:0:3: [sdh] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Dec 27 10:23:10 xen1 kernel: [ 6273.763183] sd 5:0:0:3: [sdh] Sense Key : Hardware Error [current]
Dec 27 10:23:10 xen1 kernel: [ 6273.763187] sd 5:0:0:3: [sdh] <<vendor>> ASC=0x84 ASCQ=0x0ASC=0x84 ASCQ=0x0
Dec 27 10:23:10 xen1 kernel: [ 6273.763194] sd 5:0:0:3: [sdh] CDB: Read(16): 88 00 00 00 00 01 6e 59 1f 80 00 00 00 08 00 00
Dec 27 10:23:10 xen1 kernel: [ 6273.763206] end_request: I/O error, dev sdh, sector 6146301824
Dec 27 10:23:10 xen1 kernel: [ 6273.763228] device-mapper: multipath: Failing path 8:112.
Dec 27 10:23:11 xen1 multipathd: 8:112: mark as failed
Dec 27 10:23:11 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Entering recovery mode: max_retries=15
Dec 27 10:23:11 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: remaining active paths: 0
Dec 27 10:23:11 xen1 multipathd: Path event for 360024e800070ed06000007f54dba7bfb, request call of mpathcount
Dec 27 10:23:11 xen1 multipathd: 360024e800070ed06000007f54dba7bfb: Entering recovery mode: max_retries=15

scottalanmiller

Check how your post was edited. There are "ticks" added before and after your log entry to make it appear as logs rather than as generic text.

scottalanmiller

I'm seeing device errors on the local hardware in the log.

Can you include the output of:

df -h

and...

lsblk

CitrixNewbJD

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

Check how your post was edited. There are "ticks" added before and after your log entry to make it appear as logs rather than as generic text.

Edited

scottalanmiller

@CitrixNewbJD said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

Check how your post was edited. There are "ticks" added before and after your log entry to make it appear as logs rather than as generic text.

Edited

It was already fixed. You broke it again The note was for you to look and see how to make logs appear correctly.

CitrixNewbJD

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

I'm seeing device errors on the local hardware in the log.

Can you include the output of:
df -h
and...
lsblk

[root@xen1 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2             4.0G  2.8G  986M  75% /
none                  373M   72K  373M   1% /dev/shm
/opt/xensource/packages/iso/XenCenter.iso
                       52M   52M     0 100% /var/xen/xc-install

0_1482856470106_Screenshot 2016-12-27 10.34.23.png

CitrixNewbJD

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@CitrixNewbJD said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

Check how your post was edited. There are "ticks" added before and after your log entry to make it appear as logs rather than as generic text.

Edited

It was already fixed. You broke it again The note was for you to look and see how to make logs appear correctly.

Doh!

scottalanmiller

Okay, so the mounted filesystem has enough space. That looks good.

NerdyDad

Once this crisis is over, I recommend going over this when you have free time.

https://mangolassi.it/topic/7825/sam-learning-linux-system-administration

Its not complete but its a really good start.

CitrixNewbJD

@NerdyDad said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

Once this crisis is over, I recommend going over this when you have free time.

https://mangolassi.it/topic/7825/sam-learning-linux-system-administration

Its not complete but its a really good start.

Learning Linux has always been something I've wanted to do, but have never been able to find the time to do so in a work environment.

NerdyDad

@CitrixNewbJD said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@NerdyDad said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

Once this crisis is over, I recommend going over this when you have free time.

https://mangolassi.it/topic/7825/sam-learning-linux-system-administration

Its not complete but its a really good start.

Learning Linux has always been something I've wanted to do, but have never been able to find the time to do so in a work environment.

I totally understand. Either on your laptop or as another VM in XS, I would setup Linux. Then just take a topic or 2 a day and learn a new skill. After a while, you will be building one skill on top of another.

CitrixNewbJD

Forgive me and my anxiousness, but are you waiting on an action from me, or are you in a paused mode?

scottalanmiller

Let's install that tool if we can...

yum -y install lsblk

CitrixNewbJD

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

Let's install that tool if we can...
yum -y install lsblk

0_1482859744101_Screenshot 2016-12-27 11.28.56.png

scottalanmiller

That's not promising.

CitrixNewbJD

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

That's not promising.

This is still all on Xen1. Do you want me to try anything on Xen2, the pool master?

Dashrender

@CitrixNewbJD said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

That's not promising.

This is still all on Xen1. Do you want me to try anything on Xen2, the pool master?

did you ever find out if Xen2 is on the network? able to ping the SAN?

scottalanmiller

@CitrixNewbJD said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

That's not promising.

This is still all on Xen1. Do you want me to try anything on Xen2, the pool master?

Do this on there, too..

df -h

CitrixNewbJD

@Dashrender said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@CitrixNewbJD said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

That's not promising.

This is still all on Xen1. Do you want me to try anything on Xen2, the pool master?

did you ever find out if Xen2 is on the network? able to ping the SAN?

Yes to both.

CitrixNewbJD

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@CitrixNewbJD said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

@scottalanmiller said in XenServer 6.2 servers down. I have no Xen skill. Most likely networking? Help!:

That's not promising.

This is still all on Xen1. Do you want me to try anything on Xen2, the pool master?

Do this on there, too..
df -h

 Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2             4.0G  3.6G  238M  94% /
none                  373M   72K  373M   1% /dev/shm
/opt/xensource/packages/iso/XenCenter.iso
                       52M   52M     0 100% /var/xen/xc-install