Hard Drive Type; Jbod Cascade; Single-Port Jbod 2000 External Connection Mode; Single Jbod 2000 Connection - Intel JBOD 2000 Hardware Manual

JBOD 2000 External SAS Connection Mode Overview Intel® Storage Server System JBOD 2000 Family Hardware Guide
The standard package of JBOD 2000 system doesn't contain the SFF-8088 mini-SAS cable
(you need to order the cable from other vendors). Intel has tested some models of the mini-SAS
cable (see Appendix A for the list). However, the mini-SAS cables that JBOD 2000 can support
are not limited to that list; users can qualify new cables by themselves.
7.3

Hard Drive Type

JBOD 2000 can support 6Gb/s and 3Gb/s SAS hard drive and SATA hard drive. Some
configurations, such as dual-domain SAS or failover cluster, need to take advantage of the dual-
port SAS hard drive; SATA hard drive does not support these configurations.
Intel didn't qualify the hard drive models specially for JBOD 2000. Users can connect to JBOD
2000 to select the hard drive model by referring to the THOL of SAS HBA or RAID adapter.
7.4

JBOD Cascade

JBOD cascading is also called daisy-chaining, which means connecting multiple JBOD units to
constitute deeper storage pool. How many JBOD 2000 can be cascaded depends on the
property of the SAS HBA or RAID adapter that connects to JBOD 2000. However, only two
layers of cascaded JBOD 2000 system have been fully validated by Intel. Only cascading the
same type of JBOD 2000 is recommended, in order to avoid mixing the single-port and dual-port
JBOD 2000 in a JBOD cascade group.
7.5

Single-port JBOD 2000 External Connection Mode

The Intel ® Storage Server System JBOD 2000 single-port backplane SKU can support the
following external connection modes.
7.5.1

Single JBOD 2000 Connection

Figure 39 shows the SAS HBA or RAID adapter connecting to one single-port JBOD 2000 with
one mini-SAS cable. The single controller port incorporates four SAS lanes for a total maximum
throughput of 2400MB/s with SAS 2.0 technology. In the figure, the "4\" notation indicates a 4-
lane bundled path. Either A PRI or B PRI SAS port on JBOD 2000 can be connected in this
scenario. SATA or SAS hard drive can be supported.
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Figure 39. Single JBOD 2000 Connection

Revision 1.42