Chapter 3. Hardware configuration 127You may also add the ServeRAID-MR10M adapter to increase disk space withadditional expansion units. Read more about this adapter, and the connectionwith expansion units in: Section 3.3.4, “ServeRAID-MR10M SAS/SATA II controller” on page 135 Section 3.3.5, “SAS expansion enclosure (unit)” on page 1423.3.2 SAS disk drive optionsThe x3850 M2 and x3950 M2 servers have four internal 2.5-inch hot-swap SASdisk drive bays. The hard disk drive tray is located in the media hood assembly inthe middle of the server as shown in Figure 3-20.Figure 3-20 Media hood: hard disk drive baysDepending on the level of RAID you want to configure, up to 584 GB of diskspace can be used internally by using four 146 GB drives. Table 3-10 shows thesupported disks.Table 3-10 Supported internal disk options for x3850 M2 and x3950 M2Important: To prevent damage to the disk, we recommend you firmly securethe media hood before installing or removing a SAS disk.Part number Description40K1052 2.5 inch SAS 73 GB 10 K SAS43X0824 2.5 inch SAS 146 GB 10 K SAS43X0837 2.5 inch SAS 73 GB 15 K SASSCSI ID0 SCSI ID2SCSI ID3SCSI ID12.5” hot-swapSAS HDDtraysDisk driveActivity LEDDisk driveStatus LED
