3ware controller hotswap Linux

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3ware controller hotswap Linux – Managing your servers can streamline the performance of your team by allowing them to complete complex tasks faster. Plus, it can enable them to detect problems early on before they get out of hand and compromise your business. As a result, the risk of experiencing operational setbacks is drastically lower.

But the only way to make the most of your server management is to perform it correctly. And to help you do so, this article will share nine tips on improving your server management and fix some problem about linux, 3ware, , , .

I have a server with a 3ware 9650SE controller running Debian.
The tw_cli utility shows this:

Ctl   Model        (V)Ports  Drives   Units   NotOpt  RRate   VRate  BBU
------------------------------------------------------------------------
c0    9650SE-8LPML 8         0        0       0       3       3      -        

Encls         Slots  Drives  Fans  TSUnits  PSUnits  
-----------------------------------------------------
e0            8      4       0     2        0     

For E0 it shows:

Slot      Status          (V)Port       Identify
--------------------------------------------------
slot0     OK              -             Off           
slot1     OK              -             Off           
slot2     OK              -             Off           
slot3     OK              -             Off           
slot4     NO-DEVICE       -             Off           
slot5     NO-DEVICE       -             Off           
slot6     NO-DEVICE       -             Off           
slot7     NO-DEVICE       -             Off           

The e0 should be the enclosure (SATA backplane). What I find interesting is that the utility shows C0 (the controller) has 0 drives connected to it. Someone who have experience with these type of cards could please explain it to me if this card does support hotswap for 100% and do I need to specify any additional command before replacing the drive?

Thanks

Solution :

You should issue /cx/py remove command before removing specific drive from enclosure.
/e0 show slots should show you the ports associated with slots.
3ware 9650SE does support hot-swap for 100% 😉

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