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Document No. 480SSD-SE100.A02
Kingston SSDNow E100 Addendum
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Kingston SSDNow E100 Addendum
Thank you for purchasing Kingston’s SSDNow E100. We would like to make you aware of an issue that
may occur when the ATA TRIM command is sent to the drive. In some cases, the TRIM command can
induce a drive lock state which could result in data loss.
It is important to note that the TRIM command is only passed to the SSD under the following
conditions:
E100 SSD(s) is plugged into a motherboard with an onboard SATA port and:
1. Host system is running an operating system that supports TRIM command (Windows 7, Server
2008 R2, Linux distributions using kernel 2.6.33 or later versions
2. SSD is configured as a standalone drive (No RAID)
3. IDE or ACHI mode is configured in BIOS (No RAID)
4. SSD is connected to onboard SATA port as a stand-alone drive with BIOS configured for
RAID Mode running Intel RST 9.6 or higher and in a RAID 0 configuration running Intel RST
11.5 or higher
If your SSD(s) is being used in the following configurations / conditions the above warning does
not apply since the TRIM command is not being passed to the SSD:
1. SSDs that are attached to SATA & SAS HBAs and RAID controller add-in cards (e.g., PCIe) All
RAID levels supported.
2. SSDs are configured in a RAID array (RAID 1, 5, 10, etc.) See Item #4 above.
3. SSDs are plugged into an external enclosure (SAN, NAS, DAS, JBOD)
4. SSDs are plugged into the server internal drive bays connected to a SATA/SAS RAID controller
5. SSDs are plugged into the onboard SATA controller and configured for RAID (RAID 1, 5, 10,
etc.) See item #4 above.
For added assurance, you can also disable the TRIM command by typing the following string in the
command prompt window:
Windows OS:
fsutil behavior set disabledeletenotify 1
This will prevent the Windows OS from sending any TRIM commands to the SSD.
Linux OS: TRIM is disabled by default on Linux OS. To verify TRIM is enabled/disabled key-in the
command below. The value it returns is the number of volumes that TRIM is enabled on, i.e. "0" means
TRIM is disabled, "1" means TRIM is enabled on one volume, "2" means TRIM is enabled on two
volumes, etc.
grep -iwc discard /etc/fstab