Adaptec FS4500 User Guide - Page 49
About the SATA Storage Enclosure, Disk Drive Spin-up Sequence, I/O Modules - fibre sata raid
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SATA Storage Enclosures (FS4100 and FS4500) About the SATA Storage Enclosure Disk Drive Spin-up Sequence The two APC modules in the Storage Enclosure provide enough power for 12 disk drives to spin up simultaneously. If one APC fails, drives 1-6 will spin up first, followed by drives 7 and 8, drives 9 and 10, and then drives 11 and 12. Spin-up is staggered only on enclosures with one APC. See Drive Slot Numbers on page 1-5 for the location of each drive slot. I/O Modules The SATA I/O modules have multiple FC Small Form Factor Pluggable (SFP) receptacles, used to connect hosts or to daisy-chain the Storage Enclosure to additional enclosures. The FS4100 (JBOD) has two Host ports and two Expansion ports. The FS4500 (RAID) module has two Host ports and one Expansion port. The Adaptec FS4100 I/O module is shown in Figure 5-1: I/O Module LEDs SFP Receptacles Figure 5-1 SATA I/O Module Table 5-1 shows the I/O modules available for your Adaptec SATA Storage Enclosure: Table 5-1 SATA I/O Modules Model Number Adaptec FS4100 Adaptec FS4500 Host Connection Fibre Channel Fibre Channel Disk Connection SATA SATA Disk Organization JBOD RAID 5-2
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