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1 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Abstract
This guide helps you troubleshoot OneFS upgrade failures and error messages when upgrading from OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x.
June 15, 2017
EMC ISILON CUSTOMER TROUBLESHOOTING GUIDE
TROUBLESHOOT FAILURES WHEN UPGRADING FROM ONEFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
OneFS 6.5.x - 7.2.x
2 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Contents and overview
Before you begin
Page 3
Appendix A
If you need further assistance
Start troubleshooting
Page 5
Note Follow all of these steps, in order, until you reach a resolution.
1. Follow these
steps.
2. Perform
troubleshooting
steps in order.
3. Appendixes
Appendix B
How to use this flowchart
Simultaneous upgrade
Page 11
Rolling upgrade
Page 12
Analysis
Page 6
Restart the upgrade
Page 14
Post-upgrade checks
Page 16
Appendix C
Output of the isi_for_array -s "uname -a"
command
Appendix D
Output of the isi status -q command
Best practices and useful information
Page 4
3 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Configure screen logging through SSH
We recommend that you configure screen logging to log all session input and output during your troubleshooting session.
This log file can be shared with Isilon Technical Support , if you require assistance at any point during troubleshooting.
Note: The screen session capability does not work in OneFS 7.1.0.6 and 7.1.1.2. If you are running either of these versions,
you can configure logging by using your local SSH client 's logging feature.
1. Open an SSH connection to the cluster and log in by using the root account.
Note: If the cluster is in compliance mode, use the compadmin account to log in. All compadmin commands must be
preceded by the sudo prefix.
2. Change the directory to /ifs/data/Isilon_Support by running the following command:
cd /ifs/data/Isilon_Support
3. Run the following command to capture all input and output from the session:
screen -L
This will create a file named screenlog.0 that will be appended to during your session.
4. Perform troubleshooting.
Before you begin
CAUTION!If the node, subnet, or pool that you are working on goes down during the course of
troubleshooting and you do not have any other way to connect to the cluster , you could
experience data unavailability.
Therefore, make sure that you have more than one way to connect to the cluster before
you start this troubleshooting process. The best method is to have a serial console
connection available. This way, if you are unable to connect through the network, you
will still be able to connect to the cluster physically.
For specific requirements and instructions for making a physical connection to the
cluster, see article 304071 on the EMC Online Support site.
Before you begin troubleshooting, confirm that you can connect through either another
subnet or pool, or that you have physical access to the cluster.
4 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Best practices and useful information
Most upgrade problems occur during rolling upgrades that are initiated from the OneFS web
administration interface (WebUI).
For best results, do the following:
Use the command-line interface (CLI) to perform upgrades.
Initiate the upgrade from the highest-numbered node in the cluster, unless the
highest-numbered node is an Accelerator.
If the highest-numbered node is an Accelerator, then initiate the upgrade from node 1.
Use the command-line interface
It is best to initiate the upgrade from the command-line interface. The CLI displays more detailed
information than the web interface, and is not reliant on the WebUI services running in order to
function. You can also launch a screen session, which enables you to resume from where you left off
if you get disconnected.
Initiate the upgrade from the highest-numbered node
The node that you initiate the upgrade from is called the "master node."
During an upgrade, each node is upgraded and rebooted in turn, in ascending numerical order,
starting with the lowest-numbered node.
When the master node is the highest-numbered node, the upgrade starts with node 1, and the last
node to be rebooted is the master node.
The system should always upgrade and reboot the master node last , regardless of which numbered
node it is, but this does not always happen. Sometimes, when the master node is not the
highest-numbered node, the system starts upgrading with node 1 as usual, but when it reaches the
master node, it upgrades and reboots that node in its numerical order . This stops the upgrade
process because, after it is rebooted, the master node can no longer tell the rest of the nodes to
upgrade. Therefore, you should always initiate the upgrade from the highest-numbered node in the
cluster (unless, as stated above, the highest-numbered node is an Accelerator; in this case, you
should initiate the upgrade from node 1).
When to use this troubleshooting guide
Use this guide if you are upgrading from OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x to a supported version of
OneFS.
If you experience problems when upgrading from OneFS 8.0.x, refer to:
EMC Isilon Customer Troubleshooting Guide: Upgrades from OneFS 8.x to a Later Version.
For information on supported upgrade paths, see the "OneFS Upgrade Compatibility" section of the
Isilon Supportability and Compatibility Guide.___________________________________
_________________________________________________________________________
5 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Start troubleshooting
IntroductionStart troubleshooting here. For an overview
of the conventions used in this flowchart, see
Appendix B: How to use this flowchart.
Start
Note Most upgrade problems occur
during rolling upgrades that are
initiated from the OneFS web
administration interface. Therefore,
we will use the command-line
interface exclusively to troubleshoot
your issue and get your upgrade
restarted. For more information, see
"Best practices and useful
information" on page 4.
Did the
upgrade fail with a
specific error displayed
on the screen?
Follow the prompts and onscreen instructions.
Yes
Can the
upgrade be completed
successfully now?No
End troubleshooting
Yes
No Go to Page 6
Go to Page 6
If you have not done so already, log in to
the cluster and configure logging through
SSH, as described on page 3.
Related information Isilon OneFS 7.x Upgrade Planning and Process Guide
Current Isilon OneFS Patches
____________________________________________
________________________
6 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
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Analysis
Page
6
After
running the command,
do you see this error?
ERROR Client connected from
an unprivileged port number
50230. Refusing the connection
[Errno 54] RPC session
disconnected
NoInstall a patch as described in the
following article:
OneFS: After a failed or paused
upgrade, commands sent from nodes
that are not yet upgraded might fail,
article 198906.
Then continue troubleshooting.
Yes
Go to Page 7
Run the following command to see which nodes were successfully upgraded.
isi_for_array -s "uname -a"
The output provides a list of all the nodes and indicates which version of
OneFS each is running. For an example of the output, see Appendix C.
Note: If the node did not fully reboot or is down, it will not show up. Also, if
the upgrade was a rolling upgrade, an error might appear stating a node did
not come back online.
_________
You could have arrived here from:
Page 5 - Start troubleshooting
Page 8 - Analysis (3)
________________________
_________________
7 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Analysis (2)
You could have arrived here from:
Page 6 - Analysis Page
7
Using the
output of the
isi_for_array -s "uname -a"
command from Page 6,
are all the nodes running
the new version
of OneFS?
No
Yes
No
Yes Go to Page 8
Go to Page 9
End troubleshooting
Run the following command:
isi status -q
In the output, look at the Health DASR column to see if
any nodes report -D- (Down). For an example of the
output, see Appendix D.__________
Do any
nodes report as down?
A down node means that it
failed to join the cluster
following the
upgrade.
8 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
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Analysis (3)
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Page 7 - Analysis (2)
Has it been
at least 15 minutes since the
nodes rebooted as part of
the upgrade?
Yes
Wait 15 minutes
Go back to Page 6
No
Page
8
Note the page number that you
are currently on.
Upload log files and contact Isilon Technical
Support, as instructed in Appendix A.
9 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Analysis (4)
You could have arrived here from:
Page 7 - Analysis (2)
No
Go to Page 10
Yes
Did you
follow the steps in the
"Planning an Upgrade" and
"Completing pre-upgrade tasks"
sections of the OneFS Upgrade
Planning and Process Guide
before beginning the
upgrade?
Follow the steps in the "Planning an
Upgrade" and the "Completing pre-
upgrade tasks" sections of the
OneFS Upgrade Planning and
Process Guide.
Page
9
10 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Analysis (5)
You could have arrived here from:
Page 9 - Analysis (4)
Page
10
Did you
perform a simultaneous
upgrade or a rolling
upgrade?
RollingSimultaneous
Go to Page 11 Go to Page 12
11 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
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Simultaneous upgrade
You could have arrived here from:
Page 10 - Analysis (5) Page
11
Do any
nodes report as down?
A down node means that it
failed to join the cluster
following the
upgrade.
NoYes
Go to Page 14
Run the following command:
isi status -q
In the output, look at the Health DASR column to see if
any nodes report -D- (Down). For an example of the
output, see Appendix D._________
Note the page number that you
are currently on.
Upload log files and contact Isilon Technical
Support, as instructed in Appendix A.
12 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
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Rolling upgrade
You could have arrived here from:
Page 10 - Analysis (5)
Page
12
For each node that did not get upgraded, run the following command to check
that node's /var/log/messages file to see if there are errors with a timestamp
that occurred during the upgrade. In the command, replace <YYYY-MM-DD>
with the date of the upgrade:
grep '^<YYYY-MM-DD>' /var/log/update_engine*
For example:
grep '^2015-04-15' /var/log/update_engine*
Yes
Are there
errors on a node that did
not get upgraded? No Go to Page 14
Is the
following error present?
Unable to claim upgrade
daemon on one or
more nodes.
No
Yes
Go to Page 13
Go to Page 14
Run the following command to determine which nodes did not get upgraded:
isi_for_array -s "uname -a"
The output provides a list of all the nodes and indicates which version of
OneFS each is running. For an example of the output, see Appendix C. _________
13 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
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Rolling upgrade (2)
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Page 12 - Rolling upgradePage
13
Run the following command:
isi services -a isi_upgrade_d
Is the
service enabled or
disabled?
Disabled
You are still in the middle of an upgrade and unable
to proceed.
Disable the service by running the following
command:
isi services -a isi_upgrade_d disable
Go to Page 14
Enabled
Note the page number that you
are currently on.
Upload log files and contact Isilon Technical
Support, as instructed in Appendix A.
14 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Restart the upgrade
You could have arrived here from:
Page 11 - Simultaneous upgrade
Page 12 - Rolling upgrade
Page 13 - Rolling upgrade (2)
Page
14
Open a screen session by running the following command, where <session name> is a name that
you provide. Record the name in case you need to use it later. The screen session enables you to
easily reconnect to the upgrade process if the session gets disconnected during the upgrade.
screen -S <session name>
If you get disconnected, you can use the following command to reconnect:
screen -x <session name>
Note: If you are running OneFS 7.1.1.2 or 7.1.0.6, skip this step. The screen session feature
does not work in OneFS 7.1.1.2 or 7.1.0.6.
Open an SSH connection to the
highest-numbered node in the cluster,
and log in using the root account.
Restart the upgrade by running one of the following commands:
For a rolling upgrade:
isi update --rolling
For a simultaneous upgrade:
isi update
Did the
upgrade
restart?No
Go to Page 15
Wait for the upgrade
to complete.
Yes
Note the page number that you
are currently on.
Upload log files and contact Isilon Technical
Support, as instructed in Appendix A.
__________________________
____________________
_______________________
15 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Restart the upgrade (2)
You could have arrived here from:
Page 14 - Restart the upgrade
Page
15
Have all
of the nodes been
upgraded?NoYes
Go to Page 16
Run the following command to determine whether
any more nodes were upgraded:
isi_for_array -s "uname -a"
The output provides a list of all the nodes and indicates which version of
OneFS each is running. For an example of the output, see Appendix C. _________
Note the page number that you
are currently on.
Upload log files and contact Isilon Technical
Support, as instructed in Appendix A.
16 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Post-upgrade checks
You could have arrived here from:
Page 15 - Restart the upgrade (2)
Page
16
NoYes
Go to Page 17 End troubleshooting
Do any
nodes report as down?
A down node means that it
failed to join the cluster
following the
upgrade.
Run the following command:
isi status -q
In the output, look at the Health DASR column to see if
any nodes report -D- (Down). For an example of the
output, see Appendix D._________
17 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
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___________________________
Post-upgrade checks (2)
You could have arrived here from:
Page 16 - Post-upgrade checks
Page
17
Yes No
End troubleshooting
Reboot each down node as follows:
1. If possible, use a serial console to connect to the node.
Otherwise, log in to the node by using SSH.
For instructions about connecting through a serial console, see
article 16744 on the EMC Online Support site.
2. After you are connected to the node, run the following command
to reboot the node:
shutdown -r now
3. Wait for the rebooted nodes to come back online.
___________
Do any
nodes report as
down? A down node means
that it failed to join the cluster
following the
reboot.
Run the following command:
isi status -q
In the output, look at the Health DASR column to see if any nodes
report -D- (Down). For an example of the output, see Appendix D.__________
If you want to determine root cause, please contact Isilon Technical
Support before continuing. If you do not want root cause analysis,
then continue.
Note the page number that you
are currently on.
Upload log files and contact Isilon Technical
Support, as instructed in Appendix A.
18 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
Contact Isilon Technical Support
If you need to contact Isilon Technical Support during troubleshooting, reference the page or step that you need help with.
This information and the log file will help Isilon Technical Support staff resolve your case more quickly.
Appendix A: If you need further assistance
Upload node log files and the screen log file to Isilon Technical Support
1. When troubleshooting is complete, in the command-line interface, type exit to end your screen session.
2. Gather and upload the node log set and include the SSH screen log file by using the command appropriate for your
method of uploading files. If you are not sure which method to use, use FTP.
ESRS:
isi_gather_info --esrs --local-only -f /ifs/data/Isilon_Support/screenlog.0
FTP:
isi_gather_info --ftp --local-only -f /ifs/data/Isilon_Support/screenlog.0
HTTP:
isi_gather_info --http --local-only -f /ifs/data/Isilon_Support/screenlog.0
SMTP:
isi_gather_info --email --local-only -f /ifs/data/Isilon_Support/screenlog.0
SupportIQ:
Copy and paste the following command.
Note: When you copy and paste the command into the command-line interface, it will appear on multiple lines (exactly
as it appears on the page), but when you press Enter, the command will run as it should.
isi_gather_info --local-only -f /ifs/data/Isilon_Support/screenlog.0 --noupload \
--symlink /var/crash/SupportIQ/upload/ftp
3. If you receive a message that the upload was unsuccessful , refer to article 304567 on the EMC Online Support site for
directions on how to upload files over FTP.
___________
19 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
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___________________________
Decision diamondYes No
Process stepProcess step with command:
command xyz
Go to Page #
Page
# Note Provides context and additional
information. Sometimes a note is linked
to a process step with a colored dot.
CAUTION!Caution boxes warn that
a particular step needs
to be performed with
great care, to prevent
serious consequences.
End point Document ShapeCalls out supporting documentation
for a process step. When possible,
these shapes contain links to the
reference document.
Sometimes linked to a process step
with a colored dot.
Optional process step
Directional arrows indicate
the path through the
process flow.
IntroductionDescribes what the section helps you to
accomplish.
You could have arrived here from:
Page 4 - Start Troubleshooting
Appendix B: How to use this flowchart
20 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
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___________________________
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Page 6 - Analysis
Page 12 - Rolling upgrade
Page 15 - Restart the upgrade (2)
Appendix C: Output of the isi_for_array -s "uname -a" command
Example output for isi_for_array -s "uname -a"
cluster-1: Isilon OneFS cluster-1 v7.0.2.5 Isilon OneFS v7.0.2.5
B_7_0_2_216(RELEASE): 0x7000250005000D8:Mon Nov 25 20:16:16 PST 2013
[email protected]:/build/mnt/obj.RELEASE/build/mnt/src/sys/
IQ.amd64.release amd64
______________
_____________________
___________________________
21 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
You could have arrived here from:
Page 7 - Analysis (2)
Page 11 - Simultaneous upgrade
Page 16 - Post-upgrade checks
Page 17 - Post-upgrade checks (2)
Appendix D: Output of the isi status -q command
Example output for isi status -q
Cluster Name: mycluster
Cluster Health: [ ATTN ]
Cluster Storage: HDD SSD
Size: 11G (23G Raw) 0 (0 Raw)
VHS Size: 11G
Used: 573M (5%) 0 (n/a)
Avail: 11G (95%) 0 (n/a)
Health Throughput (bps) HDD Storage SSD Storage
ID |IP Address |DASR | In Out Total| Used / Size |Used / Size
-------------------+-----+-----+-----+-----+-----------------+-----------------
1|192.168.100.100|-A-- | 396K| 828K| 1.2M| 144M/ 2.8G( 5%)| (No SSDs)
2|192.168.101.101|OK | 49K| 3.2M| 3.2M| 145M/ 2.8G( 5%)| (No SSDs)
3|192.168.102.102|OK | 3.5K| 162K| 165K| 142M/ 2.8G( 5%)| (No SSDs)
4|192.168.103.103|OK | 49K| 356K| 405K| 143M/ 2.8G( 5%)| (No SSDs)
-------------------+-----+-----+-----+-----+-----------------+-----------------
Cluster Totals: | 498K| 4.5M| 5.0M| 573M/ 11G( 5%)| (No SSDs)
Health Fields: D = Down, A = Attention, S = Smartfailed, R = Read-Only
_________________
___________________________
_____________________________________________________
22 - EMC Isilon Customer Troubleshooting Guide: Troubleshoot Failures when Upgrading from
OneFS 6.5.x, 7.0.x, 7.1.x, or 7.2.x
For links to all Isilon customer troubleshooting guides, visit the Customer Troubleshooting - Isilon Info Hub.
We appreciate your help in improving this document. Submit your feedback at http://bit.ly/isi-docfeedback._________________
___________________________
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