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Is there TRIM support for SSD in RHEL6?

Updated 2014-02-24T11:32:28+00:00

Issue

  • Is there TRIM (SCSI or block discard) support for SSD in RHEL6?
  • Is TRIM properly transmitted through layers like LVM, MD (software raid), filesystems etc?
  • Is SCSI discard on or off by default for ext4?

Environment

  • Red Hat Enterprise Linux (RHEL) 6

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