Re: Perhaps their time has come.....

On was Friday night with the crash on Sunday late. Users back on Tuesday morning.

One is a reference only system and was last backed up after data the data stopped Changing. Users off for about four days on that one.

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 3/31/2015 9:29 PM, Steinmetz, Paul wrote:

On the crashed systems, how old was latest backup?
What was total down time, from crash to users signing back on?

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DrFranken
Sent: Tuesday, March 31, 2015 9:24 PM
To: Midrange Systems Technical Discussion
Subject: Re: Perhaps their time has come.....

At least in one case a Save 21 had been performed only two days prior with very little work (weekend) between the save and the failure!

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 3/31/2015 8:58 PM, Steinmetz, Paul wrote:

Larry,

Just curious, what level of Raid on the failed systems?

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
DrFranken
Sent: Tuesday, March 31, 2015 8:51 PM
To: Midrange Systems Technical Discussion
Subject: Perhaps their time has come.....

In the last seven days I have seen not one, or two, not even half a dozen but SEVEN FC #4326 35GB 15K RPM SCSI Drives toss their bits.

Now if this was on one server I'd have a sense of humor about it, you know maybe power or cooling etc. However these were on FOUR different servers, in two states, and two countries.

Two of the systems crashed requiring complete system recovery. In none of the systems was Hot Spare implemented.

Ladies and Gentlemen these are the oldest of the 15K Drives we have.
They were announced at least as far back as 2003 with the i810 family of servers. If you had one of these running since then it would have rotated nearly 100 BILLION times, so those bearings just may be a wee bit tired by now.

Maybe it's time these drives begin their migration out of production! At lease implement hot spare if you have V5R4M5 or newer LIC and of course bring to mind the three first words ever spoken by the IBM i database to Mr TAA himself, Jim Sloan: "Backup Backup Backup."

DrF

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