Service Desk Knowledgebase: File Server: Difference between revisions

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==Key Service Description & URLs==
==Key Service Description & URLs==
* [http://www.cl.cam.ac.uk/local/sys/filesystems/ Filespace in cl.cam.ac.uk] - ''Known as File Server, Filer, Elmer or (as a virtual disk server) Eldo''
* [http://www.cl.cam.ac.uk/local/sys/filesystems/ Filespace in cl.cam.ac.uk] - ''File Server is also known as: '''NetApp Filer "Elmer"''' and as the '''virtual disk server "Eldo"'''''
* [http://www.cl.cam.ac.uk/news/category/sys-admin/ Computer Laboratory News] (Twitter use '''@UC_CL_SysAdm''')
* [http://www.cl.cam.ac.uk/news/category/sys-admin/ Computer Laboratory News] (Twitter use '''@UC_CL_SysAdm''')


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==Further CL Sys-Admin Resources==
==Further CL Sys-Admin Resources==
* http://www.wiki.cl.cam.ac.uk/rowiki/SysInfo/NetApp  - ''Sys-Admin Notes on the NetApp File Server''
* http://www.wiki.cl.cam.ac.uk/clwiki/SysInfo/NetApp  - ''Sys-Admin Notes on the NetApp File Server''


==Underpinning Services==
==Underpinning Services==
* [http://www.cam.ac.uk/cs/ ???] - ''Any supporting or underpinning services''
* Network, LDAP servers


==Customer-base for this Service==
==Customer-base for this Service==
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==Costs==
==Costs==
* Free to all current staff and students of the Computer Laboratory
* Free to all members of the Computer Laboratory who have a CL account, all accounts are allocated a default quota of 50G at account creation.  Allocation of extra space is on a discretionary basis - see '''[[Service_Desk_Knowledgebase:_User_Accounts_and_Groups#Quota_Increases | Quota Increases]]'''.


==SLA==
==SLA==
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==Service Desk Call Handling Procedure==
==Service Desk Call Handling Procedure==
''Escalation points and key contacts to be defined...''
* [https://rt.cl.cam.ac.uk RT] tickets can be escalated to the ??? team by leaving the '''Queue''' as '''sys-admin''' with the '''Owner''' set to '''Nobody''' and the '''Status''' set to '''new'''.  Tell the requestor:<br /> ''I am passing this request over to the ??? team who, I'm sure, will be in contact shortly.''


* [https://rt.cl.cam.ac.uk RT] tickets can be escalated to the ??? by changing the '''Queue''' to '''???''' with the '''Owner''' set to '''Nobody''' and the '''Status''' set to '''new'''.  Tell the requestor:<br /> ''I am passing this request over to the ??? team who, I'm sure, will be in contact shortly.''
* [http://helpdesk.csx.cam.ac.uk/ RT] tickets can be escalated by changing the '''Queue''' to '''backoffice''' with the '''Owner''' set to '''Nobody''' and the '''Status''' as '''new'''.  Tell the requestor:<br /> ''I am passing this request over to the experts who, I'm sure, will be in contact shortly.''
 
* [https://rt.cl.cam.ac.uk RT] tickets can be escalated to [http://www.lookup.cam.ac.uk/person/crsid/CRSid Firstname Lastname] by changing the '''Owner''' to '''???'''  with the '''Status''' set to '''new'''.  Tell the requestor:<br /> ''I am passing this request over to ???  who, I'm sure, will be in contact shortly.''


== Contacts ==
== Contacts ==


'''Primary'''
'''Primary'''
* [mailto:???@cl.cam.ac.uk ???@cl.cam.ac.uk] (Goes to ???)
* [mailto:maj1@cl.cam.ac.uk maj1@cl.cam.ac.uk] (Goes to [http://www.lookup.cam.ac.uk/person/crsid/maj1 Martyn Johnson])
* [mailto:???@lists.cam.ac.uk ???@lists.cam.ac.uk] (Goes to ???)
* Tel: ???
 
'''Other'''
* [http://www.lookup.cam.ac.uk/person/crsid/CRSid Firstname Lastname]


==Availability==
==Availability==
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==Hints, Tips & Known Issues==
==Hints, Tips & Known Issues==
===Linux user can't login using graphical interface===
===Slogin-serv & Filer Home directory===
[http://www.lookup.cam.ac.uk/person/gt19 Graham Titmus] (13 Jan 2015)
[http://www.lookup.cam.ac.uk/person/crsid/pb22 Piete Brooks] (12/3/15)
 
Symptoms: Linux user can't login using graphical interface, they enter username and password and get a blank screen then back to login
 
A common cause of this is a failure to access the home directory stored on the File Server (AKA '''Elmer''' or Filer), X (the window manager) needs to write a file there when it starts the user session.
To diagnose if this is the problem do the following:-
 
# Remote login to the machine using ssh -K hostname@cl.cam.ac.uk from a CL machine - check if your home directory is present ('''ls -al ~''').  If is is look to see if the users home directory is present ('''ls -al ~crsid''').
# If the home directory is missing then try to restart the auto mounter ('''cl-asuser service autofs restart''').
# Look at the mounted filesystems ('''grep ldap /proc/mounts''' - will show which systems have been auto mounted using data form the LDAP).
 


An alternative is to ask the user to check if it is the machine failing to log them in or a problem with X by getting them to try on the text console (Select with '''Ctrl-Alt-F2''').
If connecting to slogin-serv.cl.cam.ac.uk you will login to one of the two reasonably [http://www.cl.cam.ac.uk/local/sys/platforms/timesharing.html "'''std lab'''" machine]s (based on current usage) and see either of the prompts:<br />
If they can login there but have no home then it is probably a problem with the filesystemIf they cannot login at all then it is an authentication problem.  They should then try from another machine that is known to work to check their login works.
'''svr-ssh-1:~$'''  ''(the virtual server)''<br />
or<br />
'''sandy:~$''' ''(the physical server)''<br />
Each of these machines require their own  ''separate & time-limited'' krbtgt to use the [http://www.cl.cam.ac.uk/local/sys/unix/nfs-sec-krb5/ Kerberos authenication protocol] to access the departmental filer for things such as your home directory ('''/home/<font color="red">CRSid</font>'''). If the key has timed-out you can request a fresh krbtgt manually using the “'''kinit'''” command on each of the servers. You can see the current state of your krbtgt using "'''cl-krenew --status'''".


==Categorising Keywords==
==Categorising Keywords==
* ''A categorization or service type''
* File-server File server Filer Elmer Eldo

Latest revision as of 12:45, 19 June 2015


This is the File Server content page of the CL Wiki Service Desk Knowledgebase. Its purpose is to provide information to the Service Desk team on how to handle problems and requests about this CL service. If you are involved with the provision of this CL service please feel free to add to the knowledge about that it.

If CL staff need to tell the Service Desk team about problems with this service please email
sys-admin-aside@cl.cam.ac.uk.

Return to the Service Desk Knowledgebase SERVICE PORTFOLIO

Key Service Description & URLs

CL Customer Documentation

Further CL Sys-Admin Resources

Underpinning Services

  • Network, LDAP servers

Customer-base for this Service

  • All staff and students of the Computer Laboratory

Costs

  • Free to all members of the Computer Laboratory who have a CL account, all accounts are allocated a default quota of 50G at account creation. Allocation of extra space is on a discretionary basis - see Quota Increases.

SLA

  • N/A

Service Desk Call Handling Procedure

  • RT tickets can be escalated by changing the Queue to backoffice with the Owner set to Nobody and the Status as new. Tell the requestor:
    I am passing this request over to the experts who, I'm sure, will be in contact shortly.

Contacts

Primary

Availability

  • 24x7

Hints, Tips & Known Issues

Slogin-serv & Filer Home directory

Piete Brooks (12/3/15)

If connecting to slogin-serv.cl.cam.ac.uk you will login to one of the two reasonably "std lab" machines (based on current usage) and see either of the prompts:
svr-ssh-1:~$ (the virtual server)
or
sandy:~$ (the physical server)
Each of these machines require their own separate & time-limited krbtgt to use the Kerberos authenication protocol to access the departmental filer for things such as your home directory (/home/CRSid). If the key has timed-out you can request a fresh krbtgt manually using the “kinit” command on each of the servers. You can see the current state of your krbtgt using "cl-krenew --status".

Categorising Keywords

  • File-server File server Filer Elmer Eldo