[SASAG] Oct 8th Meeting - Open Meeting

J.P. McGlinn jp.mcglinn at osnexus.com
Wed Oct 7 13:01:46 PDT 2015

+1 on this. Performance is another aspect to consider, hardware vs software
and sync vs. async writes. I'm looking forward to this.

-----Original Message-----
From: members-bounces at lists.sasag.org
[mailto:members-bounces at lists.sasag.org] On Behalf Of John N.
Sent: Wednesday, October 7, 2015 12:16 PM
To: members at lists.sasag.org
Subject: Re: [SASAG] Oct 8th Meeting - Open Meeting

I'd like to poll people about RAID configs for SSD drive arrays.
It's actually a more complex problem then what you would think at first
Striping is probably pointless.  Raid 6 is not advised, because every SSD is
touched by every write, so the DWPD counter goes up simultaneously, causing
all SSDs to expire simultaneously.
I'm now looking at more exotic solutions like RAID-15 (two raid5's mirrored)


John H. Nyhuis
Home: (206)-361-5997
cabal at uw.edu

On 10/07/2015 11:06 AM, Ski Kacoroski wrote:
> Hi,
> Sorry this is late, but I could not find a speaker so this meeting is 
> an open meeting where you can bring problems to the group and get ideas on
how to resolve them. Also we will discuss the latest news affecting system
administrators. A few tidbits to start with are:
> Botnets are changing: 
> http://www.admin-magazine.com/News/Compromised-Linux-Servers-Fall-into
> -Massive-Botnet
> Watson is expanding: 
> http://www.admin-magazine.com/HPC/News/IBM-s-Watson-Project-Unveils-Ne
> w-Tools-for-Medical-Research
> Phone issues: 
> https://www.duosecurity.com/blog/identifying-bad-apples-getting-to-the
> -core-of-ios-vulnerabilities
> Creating a blameless culture: 
> http://everythingsysadmin.com/2015/10/beyond-blame-oct25.html
> How to grow a community: 
> http://sarah.thesharps.us/2015/10/06/what-makes-a-good-community/
> New hardware - Google phones and Microsoft Surfaces
> What are the issues affecting you?
> cheers,
> ski

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