[Toolserver-l] Maintenance: user-store; all database clusters tonight

[Krinkle]

Thanks River,

Though I personally have no problem with your previous announcement  
about the maintenance yesterday, but this table-like notice is much  
beter in my opinion.

--Krinkle

Op 11 sep 2010, om 17:26 heeft River Tarnell het volgende geschreven:

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> (I have the impression that our maintenance notices are not always  
> very clear,
> since people are sometimes surprised when we carry out previously- 
> announced
> maintenance.  So, here's a new and hopefully improved notification  
> format.)
>
> This is a maintenance notification for tonight (Saturday 11th) UTC.  
> The
> following services will be affected:
>
> Service				| Expected impact
> - --------------------------------+-----------------------------------
> s1 cluster			| User databases unavailable for < 10 minutes
> s2 cluster			| Entire cluster unavailable for < 10 minutes
> s3 cluster			| User databases unavailable for < 10 minutes
> s4 cluster			| User databases unavailable for < 10 minutes
> s5 cluster			| Entire cluster unavailable for < 10 minutes
> s6 cluster			| User databases unavailable for < 10 minutes
> user databases (sql)		| Unavailable for < 10 minutes
> user-store filesystem		| Unavailable for < 20 minutes
> NFS, LDAP, misc services:	| None expected, but at risk during  
> maintenance.
>  SVN, phpMyAdmin, SGE, tsbot,	|
>  mail forwarding, DNS,		|
>  sql-toolserver database	|
> All other services		| No impact
>
> Start time:	Sunday, 12th September, 12AM UTC
> End time:	Sunday, 12th September, 3AM UTC
>
> Details:
>
> Tonight we will complete the upgrade to Solaris 10 Update 9 on the  
> remaining
> servers.  This requires under 10 minutes downtime while each system  
> reboots.
>
> Since we will be upgrading the primary server in each cluster, which  
> holds user
> databases, these will be unavailable during the reboot.  Access to  
> replicated
> databases will not be interrupted, since queries will be directed to  
> the
> alternative server while one is rebooted.
>
> The exception is s2/s5 and sql (user databases), which currently  
> have only one
> server.  They will therefore be unavailable during the reboot.
>
> 	- river.
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