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RX900 S1 Maintenance Manual 79
6 Hard disk and solid state drives
The hard disk drives which can be ordered for the PRIMERGY RX900 S1 are
supplied already mounted in an installation frame so that defective hard disk
drives can be replaced and new hard disk drives can be added during operation.
The hard disk drive/solid state drive and the installation frame together make up
the HDD/SSD module.
This section provides information on how to install or remove HDD/SSD
modules and how to replace the SAS backplane. For information on SAS RAID
controllers controlling the HDD/SSD modules see "Expansion cards and BBU"
on page 105.
V CAUTION!
● The hard disk drive must not be removed from the installation frame
by anyone except a service technician.
● The HDD/SSD modules (drives) must all be marked clearly so that
they can be put back in their original places after an upgrade. If this
is not done, existing data can be lost.
● The hot-plug function is only possible in conjunction with a
corresponding RAID configuration.
Further information about the RAID configuration or RAID level can
be found in the RAID controller documentation.
● Do not touch the circuitry on boards or soldered parts. Hold the
metallic areas or the edges of the circuit boards.
● Before removing the unit, wait for about 30 seconds until the disk
stops spinning completely.
● When the hard disk unit is starting up, you may hear a resonant noise
for a while, but this does not mean a failure.
● Depending on the OS, you can configure the write cache settings for
the hard disk drives. If a power failure should occur while the write
cache is enabled, cached data may be lost.
● When disposing of, transferring, or returning a hard disk unit, wipe out
the data on the drive for your own security.