On average if you have a 1TB drive, you can write 10TB of data to it per day over a 5 year period before it is expected to fail.
The Tier 1 SSD’s (Mainstream/Read Intensive) are rated for 1DWPD.
https://www.ibm.com/support/knowledgecenter/en/POWER8/p8hal/pxhal_read_intensive_ssd.htm
________________________________
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxx> on behalf of Rob Berendt <rob@xxxxxxxxx>
Sent: Tuesday, November 21, 2017 3:21:36 PM
To: Midrange Systems Technical Discussion
Subject: RE: Emails from IBM Announcement Letters <gasm@xxxxxxxxxx>
Exactly what does this mean?
<snip>These drives are rated at 10 DWPD (Drive Writes Per Day) calculated
over a five-year period.</snip>
Does that mean if it is a 1.2TB drive you can perform an average of 1.2TB
* 10 writes per day over a five year period? Or does it mean you can
perform an average of 10 writes, which can be as little as one character,
per day, over a 5 year period? I'm hoping it's not the latter.
Kind of like "Write Rarely, Read Many"?
Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1
Group Dekko
Dept 1600
Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
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From: "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>
Date: 11/21/2017 03:13 PM
Subject: RE: Emails from IBM Announcement Letters <gasm@xxxxxxxxxx>
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>
Steve,
Thanks for the link.
SSD drives reduced by 50%.
Paul
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Steve Pavlichek
Sent: Tuesday, November 21, 2017 3:02 PM
To: Midrange Systems Technical Discussion
Subject: RE: Emails from IBM Announcement Letters <gasm@xxxxxxxxxx>
I received the IBM Announcement email today.
Here's the web based version.
https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww-01.ibm.com%2Fcommon%2Fssi%2FShowDoc.wss%3FdocURL%3D%2Fcommon%2Fssi%2Frep_ca%2F9%2F897%2FENUSC17-049%2Findex.html%26lang%3Den%26request_locale%3Den&data=02%7C01%7Cspavlichek%40hotmail.com%7C8df7782f8a6b45d4ec3108d5311d838d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636468925179707148&sdata=5tOchA93lFNVP9dbzzt9PWWALKwYhJWcpuuaI5OVoEk%3D&reserved=0
From: Steinmetz, Paul<mailto:PSteinmetz@xxxxxxxxxx>
Sent: Tuesday, November 21, 2017 2:58 PM
To: 'Midrange Systems Technical Discussion'<mailto:midrange-l@xxxxxxxxxxxx
Subject: Emails from IBM Announcement Letters <gasm@xxxxxxxxxx>
I stopped receiving emails from IBM Announcement Letters gasm@xxxxxxxxxx<
mailto:gasm@xxxxxxxxxx>
Last ones received were 10/10, 10/3, 9/26
Not sure if this is a subscription issue or a possible spam issue.
Anyone else have trouble with these?
There was important IBM announcement today on SSD price reductions, that I
would like to read.
Thank You
_____
Paul Steinmetz
IBM i Systems Administrator
Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071
610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home
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