Storage; Internal Disks - IBM System x3850 X5 Implementation Manual

Figure 3-21 Relative memory throughput by memory mode

3.9 Storage

In this section, we look at the internal storage and RAID options for the x3850 X5, with
suggestions where you can obtain the details about supported external storage arrays. This
section includes the following topics:
3.9.1, "Internal disks" on page 90
3.9.2, "SAS and SSD 2.5-inch disk support" on page 91
3.9.3, "IBM eXFlash and 1.8-inch SSD support" on page 93
3.9.4, "SAS and SSD controllers" on page 96
3.9.6, "External storage connectivity" on page 101

3.9.1 Internal disks

The x3850 X5 supports one of the following sets of drives in the internal drive bays,
accessible from the front of the system unit:
Up to eight 2.5-inch SSDs
Up to eight 2.5-inch SAS or SATA HDDs
Up to sixteen 1.8-inch SSDs
A mixture of up to four 2.5-inch drives and up to eight 1.8-inch SSDs
Figure 3-22 on page 91 shows the internal bays with eight 2.5-inch SAS drives.
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IBM eX5 Implementation Guide
Relative Memory Throughput by Memory Mode
Sparing
Mirroring
Normal
0 20
62
50
40 60 80
Relative Memory Throughput
100
100 120