09-19-2012 04:24 AM
Is the drive recognized when plugged into the eSata port after the system is running? The existing chipset should work for RAID 1 since only Port 0 is needed.
09-20-2012 03:38 PM
Sorry, I just don't understand. When I plug the drive in, it does not get recognized by the W520, no matter whether it is turned off first or not. I am having a problem understanding what you mean when you say that RAID isn't recognized by the chipset? Why should it be? The RAID controller is downstream (sic?) from the eSata port. All RAID activity is handled by some kind of controller inside the external RAID box. All the Windows 7 64 bit OS should see is a single eSata port. That's why you buy such a device, to eliminate the RAID card inside the computer. Or am I missing something here? The simultaneous writes and reads happen after the data is transferred to the external box, correct? On my desktop box, I have a dual RAID array card. I plug both estata's into that card, and it does the read/writes *before* the data is sent to the external drive. (a different drive than this one)
To be clear. This drive works *fine* on both my desktop unit plugging it into a single eSata port, not the dual card ports, and my previous laptop, a Dell that had an eSata port just like the one on the Lenovo.
I believe that the port is defective, but wanted to see if anyone here knew of a fix for this before contacting Lenovo.
By the way, I just bought a USB 3.0 to eSata adapater for $29. I plugged the external RAID drive described above into the adpater (via an esata cable) and plugged the USB 3.0 cable coming from the little adapter into the USB 3.0 port on the Lenovo. It recognized the drive fine, hot mount (I didn't reboot). The drive is seen just fine in Storage Management plug in, and even hot dismounts. (ejected by the tray icon eject option).
So it's not the drive, it's the esata port. I'm going to contact Lenovo. More on this as I figure it out. But for now, the USB3.0<>eSata option works fine. This means the end of the line for eSata for me.
09-20-2012 05:09 PM - edited 09-20-2012 05:10 PM
I agree that your eSata port appears to be defective. The fact that you can use the eStata -> USB 3.0 adapter (I assume the Addonics unit) proves that the drive works properly on that configuration. I still don't understand why the eSata port doesn't show a defect in Device Manager if it is operating incorrectly, but I presume that service will correct the h/w issue. Thanks for the feedback.
01-15-2013 02:19 PM
Just wondering what your solution/outcome was? I'm currently experiencing the same situation as you describe. The funny thing is that everything worked perfectly up until recently.
When my WD eSATA RAID 1 enclosure is attached to the eSATA port on the back of my Mini Dock, it does not mount.
01-15-2013 02:47 PM
I have a similar problem with my WD eSata RAID1 enclosure as well, but in my case it is not recognized only when I dock my laptop that is in sleep mode at the time. The eSata drive is not shown in the Explorer until I disconnect/reconnect it. Then it shows up and everything works fine. I have this issue since I upgraded my OS to Windows 8, so I suspect it could be just a driver issue.
05-17-2013 07:21 PM
05-18-2013 12:52 PM - edited 05-18-2013 12:53 PM
I have a multi drive dock that takes 2 sata drives. If I have 1 drive installed on the esata dock everything works. If I have 2 drives it doesn't work.
The eSata port does not have the port multiplier capability, Only one drive can be used at a time. If you want to use multiple eSata drives, then you will need something like this for the ExpressCard slot:
05-19-2013 03:07 PM