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please explain SATA hot swap IC's to me


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Hi, Just notices this nice case PC-Q25 (not available yet) it has hot plug feature.

http://www.lian-li.com/v2/en/product/product06.php?pr_index=584&cl_index=1&sc_index=25&ss_index=67&g=f

 

What happens when 4 or or mote TB drives are available, these hot plug IC's will not work anymore? As I noticed brand name manufacturers all specify that the cages are for 2TB drives.

 

Also what about this hot plug IC then any good http://www.aerocooler.com/shop.cart?action=ITEM&prod_id=CASSCP5

I'm looking forward to get this PC-9F case instead and mod it for hot swap, because the PC-Q25 seems too small and unstable especially since one of the panels is attached without screws.

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It's usually the motherboard that has to support the features. I believe it has to advertise AHCI hot swap capability to the linux kernel for it to work. My motherboard will advertise 6 of the ports as AHCI hot swap, but I'm not sure what the SATA cards do...

 

Regards to case, a SATA port is a SATA port.

 

Correct me if I'm wrong :)

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Hi, Just notices this nice case PC-Q25 (not available yet) it has hot plug feature.

http://www.lian-li.com/v2/en/product/product06.php?pr_index=584&cl_index=1&sc_index=25&ss_index=67&g=f

 

What happens when 4 or or mote TB drives are available, these hot plug IC's will not work anymore? As I noticed brand name manufacturers all specify that the cages are for 2TB drives.

 

Also what about this hot plug IC then any good http://www.aerocooler.com/shop.cart?action=ITEM&prod_id=CASSCP5

I'm looking forward to get this PC-9F case instead and mod it for hot swap, because the PC-Q25 seems too small and unstable especially since one of the panels is attached without screws.

 

No manufacturer is going to advertise compatibility with something that does not exist.  Most hard disk products, however, tend to be upward compatible to the next size (excep the BR10i).  My guess is if you email the drive cage manufactureres, they will say are not officially supported but do work.  Eventually one of them will start advertising 3T support and others will follow suit.

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There are no IC's on the products you linked. They are simple pass-through connections. The drive size doesn't matter one bit, since these could be considered as being equivalent to a SATA cable. However, a older poorly made one might have issues with the newer 6Gbps SATA speeds.

 

The SATA connections were designed with hot-swap in mind from the start, even if some hardware (motherboard chipsets) or software (such and Linux or Windows) didn't support the hot-swap capability. If you look at the connector, you can see the ground pins extend past the other ones so they make and break first. I'm not much of a server guy, but I actually believe much of the SATA stuff was lifted off older SAS hardware designs, which were used in enterprise class servers.

 

Peter

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