Installing drivesUse this information for notes and instructions for installing drives in the server.The following notes describe the type of drives that the server supports and otherinformation that you must consider when you install a drive. For a list ofsupported drives, see http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/.v Locate the documentation that comes with the drive and follow thoseinstructions in addition to the instructions in this chapter.v The server supports one optional ultra-slim SATA CD-RW/DVD-ROM opticaldrive.v The server can support up to sixteen 2.5-inch drives, up to thirty-two 1.8-inchdrives, or a combination of both 2.5-inch and 1.8-inch hot-swap drives, using thesupported SAS/SATA backplane configurations. The server supports 2.5-inchhot-swap SAS or hot-swap SATA hard disk drives, 2.5-inch hot-swap SATA solidstate drives, and 1.8-inch hot-swap SATA solid state drives (see “SupportedSAS/SATA drive backplane configurations” on page 56 for more information).v You can mix 2.5-inch hot-swap SAS and SATA hard disk drives, 2.5-inchhot-swap SATA solid-state drives, and 1.8-inch hot-swap SATA solid-state drivesin the same server as long as you use the same type of drives within the samearray.v When you upgrading drive backplane configurations, you must install all1.8-inch solid state drive backplanes to the right of all 2.5-inch hard disk drive or2.5-inch solid state drive backplanes. All 2.5-inch backplanes must be installed tothe left of all 1.8-inch backplanes. See “Drive IDs” for drive ID assignmentinformation and “Supported SAS/SATA drive backplane configurations” onpage 56 for information about the combination of supported drive backplaneconfigurations.v The 8x2.5-inch hot-swap drive backplane with controller expander must alwaysbe installed in backplane bays 3 and 4. See “Connecting the SAS cables” on page64 for more information about cabling the SAS cables.v The electromagnetic interference (EMI) integrity and cooling of the server areprotected by having all bays and PCIe slots covered or occupied. When youinstall a drive, save the EMC shield and filler panel from the bay in the eventthat you later remove the device.Drive IDsThis information provides instructions on how to determine drive IDs when youinstall the supported backplane configurations.The hot-swap-drive ID that is assigned to each drive is printed on the front of theserver. The following illustrations show the locations of the IDs of the drives. TheID numbers and the drive bay numbers are the same.Note:1. The drive bay IDs can vary, depending on the combination of the SAS/SATAbackplanes installed in the server.2. When upgrading drive backplane configurations, you must install all 1.8-inchsolid-state drive backplanes to the right of all 2.5-inch hard disk drive or2.5-inch solid-state drive backplanes. All 2.5-inch drive backplanes must beinstalled to the left of all 1.8-inch drive backplanes.54 System x3750 M4 Types 8722 and 8733: Installation and Service Guide