SAS cabling for the ESLL and ESLS storage enclosures
Learn about the different serial-attached SCSI (SAS) cabling configurations that are available for the ESLL and ESLS storage enclosures.
SAS adapter to the ESLL and ESLS storage enclosures
The following list describes some of the supported configurations for connecting SAS adapters to
the ESLL and ESLS storage
enclosures:
Notes:
- AIX® and Linux support the ESLL and ESLS storage enclosures.
- IBM® i supports only the ESLS in a mode 1 configuration.
- Single SAS adapter to one ESLL or ESLS storage enclosure through a
mode 1 connection.
- Connection by using SAS YO12 cables to connect to the ESLL or ESLS storage enclosure.
- Supported on AIX, Linux, and IBM i systems.
Figure 1. Mode 1 connection of one ESLL or ESLS storage enclosure by using a YO12 cable to a single SAS adapter
- Single SAS adapter to two ESLL or ESLS storage enclosures through a mode 1 connection.
- Connection by using SAS YO12 cables to connect to the ESLL or ESLS storage enclosure.
- Supported on AIX, Linux, and IBM i systems.
Figure 2. Mode 1 connection of two ESLL or ESLS storage enclosures by using YO12 cables to a single SAS adapter
- One pair of SAS adapters to one ESLL or ESLS storage enclosure
through a mode 1 connection.
- For SAS adapter pairs, you must attach the SAS cables to the same port on both adapters.
- Connection by using SAS YO12 cables to connect to the ESLL or ESLS storage enclosure.
- Supported on AIX, Linux, and IBM i systems.
Figure 3. Mode 1 connection of one ESLL or ESLS storage enclosure by using YO12 cables to one pair of SAS adapters
- One pair of SAS adapters to two ESLL or ESLS storage enclosures through a mode 1 connection.
- For SAS adapter pairs, you must attach the cables to the same port on both adapters.
- Connection by using dual SAS YO12 cables to connect to the ESLL or ESLS storage enclosure.
- Supported on AIX, Linux, and IBM i systems.
Figure 4. Mode 1 connection of two ESLL or ESLS storage enclosures by using YO12 cables to one pair of SAS adapters
- Two independent SAS adapters to one ESLL or ESLS storage enclosure
through a mode 2 connection.
- Connection by using two SAS YO12 cables to connect to the ESLL or ESLS storage enclosure.
- Supported only on AIX and Linux systems.
Figure 5. Mode 2 connection of ESLL or ESLS storage enclosure by using YO12 cables to two independent SAS adapters
- Single SAS adapters to one ESLL or ESLS storage enclosure through a
mode 2 connection.
- Connection by using two SAS YO12 cables to connect to the ESLL or ESLS storage enclosure.
- Supported only on AIX and Linux systems.
Figure 6. Mode 2 connection of ESLL or ESLS storage enclosure by using YO12 cables to a single SAS adapter
- Two pairs of SAS adapters to one ESLL or ESLS storage enclosure
through a mode 2 connection.
- For SAS adapter pairs, you must attach the cables to the same port on both adapters.
- Connection by using SAS X12 cables to connect to the ESLL or ESLS storage enclosure.
- Supported only on AIX and Linux systems.
Figure 7. Mode 2 connection of one ESLL or ESLS storage enclosure by using X12 cables to two pairs of SAS adapters
- Four independent SAS adapters to one ESLL or ESLS storage enclosure
through a mode 4 connection.
- For SAS adapter pairs, you must attach the cables to the same port on both adapters.
- Connection by using SAS X12 cables to connect to the ESLL or ESLS storage enclosure.
- Supported only on AIX and Linux systems.
Figure 8. Mode 4 connection of one ESLL or ESLS storage enclosure by using X12 cables to four independent SAS adapters
