Using A Ssd As A Boot Device; Cache Setting Of Ssds; Estimated Usable Period Of Ssds; Preventive Replacement Monitoring Function Of Ssd - Fujitsu SPARC Enterprise T5140 Product Notes

Using a SSD as a Boot Device

You cannot use a SSD as a boot device.

Cache Setting of SSDs

The SSDs have a setting of internal cache enabled in the initial status. When used in the
cache enabled condition, data may be lost at the time of power failure.
You can disable the internal cache by using a sub command cache of format -e
command after booting the Solaris OS. This setting is not saved when you reboot the Solaris
OS.
To ensure data integrity, it is recommended to use an uninterruptible power supply (UPS).

Estimated Usable Period of SSDs

The SSDs are designed with the estimate of usable period for five years. Depending on the
user environment such as the frequency of use, replacement may be required before the five-
year maintenance support period expires.

Preventive Replacement Monitoring Function of SSD

On the ESF (Enhanced Support Facility) of a certain version or later, the preventive
replacement monitoring function of SSD is supported. Supported versions of software are as
follows.
Supported versions of software
■
ESF (Enhanced Support Facility) 3.0 to 3.1, and patch 914604-08 or later

Using SSDs on the 16-Disk Backplane Model

To use the SSDs on the 16-disk backplane model, only the server equipped with the USB
SATA DVD drive can be used.
For servers shipped after September 2009, the USB SATA DVD drive unit has been
mounted. Confirm whether a USB SATA DVD drive unit is mounted on your server by using
either of the following methods.
Confirm that the "SATA DVD" mark appears on the front side of the DVD drive.
■
Confirm that specific part numbers are displayed in the output for the following
■
ILOM/ALOM commands.
18 SPARC Enterprise T5140 and T5240 Servers Product Notes • November 2012