CentOS 6, SSD Recommendations?
Hello,
because of high disk load we plan to move from disk (raid1) to ssd.
Are there recommendations for
– manufacturer
– file sytem
– raid1
The Red Hat Storage Administration Guide says:
– no raid 1
– ext4 only is this state of the art?
I have searched list,CentOS.org 2015 – nothing found.
I found in the year 2012 / 2013:
https://www.CentOS.org/forums/viewtopic.php?t=7580
https://www.CentOS.org/forums/viewtopic.php?t=7175
https://www.CentOS.org/forums/viewtopic.php?t=3667
Shall I prefer to move to fast disks (15000 rpm)?
Thanks Helmut
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2 thoughts on - CentOS 6, SSD Recommendations?
I’m not sure which version of the guide you’re reading. The version for release 6 recommends RAID1 or RAID10, and notes that both ext4 and XFS
support the discard mount option.
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/Storage_Administration_Guide/#ch-ssd
I strongly recommend SSDs that have write buffer protection, implemented via a internal bank of ‘supercaps’ for any sort of server application.
Suitable drives include Intel S3500, Samsung SM863/PM863, Seagate 1200.2
SAS, etc. Note many of these come in varying levels of write endurance, if your application is write/update intensive, such as an OLTP relational database, you want the high write endurance versions.