Abstract: A mounting frame located in a computer cabinet equipment drawer can be transitioned to a loading position to receive an electrical device. The mounting frame in the loading position provides ample manipulation space for connecting or removing the electrical device. The mounting frame may also be retracted to an operational position. The retracted mounting frame allows the electrical device to be positioned in a dense array with minimal space between electrical devices. The mounting frame supports positioning a plurality of electrical devices in dense arrays within a computer equipment cabinet equipment drawer while also providing an adequate manipulation space for connecting and removing the electrical devices. The arrangement allows the electrical devices to be hot swappable while still being densely located.

Abstract: A table for identifying potentially bad location addresses based on prior knowledge and performing specific operations using the table data to ensure write recovery is disclosed. A Write Recovery Table (WRT) is provided, which consists of a list of LBAs requiring such special write recovery action so that a WRITE AND VERIFY command is issued instead of a WRITE command. If the WRITE AND VERIFY command fails, the RAID controller can issue a REASSIGN BLOCKS command for the bad block and re-issue the WRITE AND VERIFY command. If WRITE AND VERIFY commands are not supported, then the system can use a READ command with the “Force Unit Access” flag bit being set to “1” to verify the written data. Further, the WRT may be combined with Bad Data Table (BDT) to reject a Read Request from the host for a matched LBA (that is listed therein) because the data in the addressed block is known incorrect when a write recovery action is not warranted.