OWC Jupiter Mini-SAS
Appendix
Q:
should I use passive or active mini-sas cables with my Jupiter storage system?
A:
To connect the Jupiter mini-sas expander Rack 835 to another device (a mini-sas controller card, Jupiter switch, or
another sas expander storage device), passive mini-sas cables should be used. active mini-sas cables should be used
to connect two Jupiter switches to each other in the event that they are separated by a distance greater than 6 meters.
Q:
What is the max cable length for mini-sas?
A:
Passive mini-sas cabling is available in lengths up to 6 meters. active mini-sas cabling is available in lengths up to
25 meters. active cabling will only be used for extended switch to switch runs and not for storage unit to computer
connections.
Q:
How many Jupiter expander systems can I chain together?
A:
While in theory many more can be chained to each other, for performance reasons it is recommended that no more
than 3 Jupiter expander systems be chained together.
Q:
When should I add a Jupiter switch?
A:
add a Jupiter switch to create a san with multiple hosts or simply to add more storage to your existing storage.
Q:
What drives should I use? saTa? sas? Is there a benefit to one or the other?
A:
While sas and saTa are similar in a lot of ways, sas was built primarily for enterprise use in mind. sas can tolereate
multiple host connections while saTa drives can only be used by one host at a time. This applies to Jupiter expander
storage systems when doing a san configuration with multiple hosts accessing the same group of storage, sas drive
will be required. When using Jupiter RaID subsystems, sas or saTa can be used as any RaID array created will be seen as
a sas device.
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