NEC Express5800 User Manual page 307

Removal
Follow the procedure as described below to remove 3.5-inch hard disk drives.
IMPORTANT: About data on the hard disk drive
Be sure to take appropriate measures not to leak important data (e.g.,
customers' information or companies' management information) on the
removed hard disk drive to any third parties.
Data seems to be erased when you empty "Recycle Bin" of Windows or
execute the "format" command of the operating system. However, the
actual data remains written on the hard disk drive. Data not erased
completely may be restored by special software and used for
unexpected purposes.
It is strongly recommended that the software or service (both available
at stores) for data erasure should be used in order to avoid the trouble
explained above. For details on data erasure, ask your sales
representative.
1.
See the section "Preparing for Installation and Removal" described earlier to prepare.
2.
Remove the side cover.
3.
Follow Steps 1 through 7 of the installation procedure to remove the disk cage.
4.
Follow Steps 8 and 9 of the installation procedure to remove the hard disk drive.
5.
Reassemble the server.
Upgrading Your Server 9-17