nMP Locks up after System Sleep with 3+ daisy chained Promise2 R4 Enclosures

[ShortArc]

My nMP(6,1) will not recover from system sleep when three or more Pegasus Promise2 R4 enclosures are daisy chained to it.

This will also happen without drives installed.

I also tested it with a second nMP at my locate Apple Store replicating the same system lockup.

There are no issues when this configuration is connected to a rMBP Thunderbolt 1 port.

I have been communicating with Apple Engineering (via Tech support) on this issue for over a month and the cause would appear to be the Promise Pegasus2 enclosures. Promise has not given any feedback to date.

I would strongly recommend you stay away from these enclosures if you plan on daisy chaining more than two enclosures on the same port with system sleep enabled.

 

[k-hawinkler]

My nMP(6,1) will not recover from system sleep when three or more Pegasus Promise2 R4 enclosures are daisy chained to it.

This will also happen without drives installed.

I also tested it with a second nMP at my locate Apple Store replicating the same system lockup.

There are no issues when this configuration is connected to a rMBP Thunderbolt 1 port.

I have been communicating with Apple Engineering (via Tech support) on this issue for over a month and the cause would appear to be the Promise Pegasus2 enclosures. Promise has not given any feedback to date.

I would strongly recommend you stay away from these enclosures if you plan on daisy chaining more than two enclosures on the same port with system sleep enabled.

Well, I disabled the system or drives going to sleep to avoid crashing when trying to wake up. However, I have only older FirmTek eSATA enclosures hooked up via eSATA to Thunderbolt adapters/converters.

So, to me this seems to be an nMP problem, not just a Pegasus Promise2 R4 problem.

 

[ShortArc]

I should also mention that I added a LaCie 1TB SSD TB2 as the third device (along with the P2R4s) and the system had no issues waking from sleep. Maybe not just a problem with P2R4 but I would say most likely.

 

[ShortArc]

Powering on the Promise2 enclosures while the MP(6,1) is booting freezes my system. Powering on the Promise2 connected on separate ports simultaneously while the MP(6,2) is running causes a kernel panic. (FW Version 3.18.0000.36). Power issue?

 

[flynz4]

Powering on the Promise2 enclosures while the MP(6,1) is booting freezes my system. Powering on the Promise2 connected on separate ports simultaneously while the MP(6,2) is running causes a kernel panic. (FW Version 3.18.0000.36). Power issue?

I would be suspect of the power. Are they all plugged into the same circuit (i.e. does the same circuit breaker shut down all arrays and the nMP? I would try them on different circuits as a starter.

Also... are you using UPS? If so... try the nMP on the UPS and the drives plugged directly into the wall.

If that works... the I would suggest getting separate UPS units for the nMP and the Pegasus units.

/Jim

 

[ShortArc]

I would be suspect of the power. Are they all plugged into the same circuit (i.e. does the same circuit breaker shut down all arrays and the nMP? I would try them on different circuits as a starter.

Also... are you using UPS? If so... try the nMP on the UPS and the drives plugged directly into the wall.

If that works... the I would suggest getting separate UPS units for the nMP and the Pegasus units.

/Jim

Tested. Not a power outlet issue or UPS issue (APC Smartups 3000xl with two battery packs attached).

 

[ShortArc]

Either the latest FW update by Promise (3.18.0000.36) or OS X update 10.9.3 resolved the sleep issue. I will have to go back to see which did what.