Chapter 5. IBM BladeCenter HX5 205Table 5-23 Supported SSDsFor more information about SSD drives and their advantages, see 2.8.1, “IBM eXFlashprice-performance” on page 49.5.11.2 LSI configuration utilityFigure 5-20 shows the LSI SAS Configuration Utility window running on a 2-node HX5 withone controller in each node. The SAS1064 that is listed first is always the primary nodecontroller and the SAS1064 that is listed second is the secondary node’s controller.Figure 5-20 LSI Configuration UtilityIn a 2-node configuration, each controller operates independently, and each controllermaintains its own configuration for the sets of drives that are installed in that node. Onecontroller cannot cross over to the other node to perform a more complex RAID solution.Using independent controllers allows for several configuration options. Each LSI 1064controller has an option of RAID-1, RAID-0, or JBOD (just a bunch of disks). No redundancyexists in a JBOD configuration, and each drive runs independently. The blade uses JBOD, bydefault, if no RAID array is configured.Figure 5-21 on page 206 shows the three options in the LSI 1064 setup page, LSI Logic MPTSetup Utility. Only two options are supported with this blade, because there are only twodrives maximum that are installable in the HX5 and an Integrated Mirroring Enhanced (IME)volume requires three drives minimum.Part number Feature code Description43W7734 5314 IBM 50GB SATA 1.8-inch NHS SSD
