RE: Flash Copy questions -- MIDRANGE-L

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My boss would love mirroring and internal drives, but I guess our spec exceeds the max capacity for internal drives.

-----Original Message-----
From: DrFranken [mailto:midrange@xxxxxxxxxxxx]
Sent: Saturday, June 16, 2018 5:51 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: Re: Flash Copy questions

I concur strongly with Roberto, DRAID with the maximum number of drives participating. It's not the future, it's today, really. if you want to allocate two hot hot spares that's acceptable. Note that hot spares in DRAID are not physically idle (and thus not participating in I/O) as they are with RAID 5 or 6 they are spread out across all drives in the DRAID set. DRAID is better in so many ways!

Mirroring is still valid on internal disk of course and yes you can do hot spare with Mirroring since i 7.1.

Yes you do IPL only the flash copy and it will take a bit longer. This is a perfect spot for the startup job to query the partition number so it knows it's not production and doesn't start up jobs it shouldn't!

- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

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