Data drives won't boot`
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Author:  Running4Shape [ Mon Apr 20, 2015 3:04 pm ]
Post subject:  Data drives won't boot`

Greetings, I have a EX475. The server boots with just the system drive in, but does not boot with the 2 additional data drives in. I have pulled the system drive and both of the data drives, and scanned them on another computer. They all 3 scan clean.

The boot fail is a continuous cycle.

I can remote desktop into the server with the 2 data drives pulled.

Any ideas? purchased the 475 new in the box a couple years ago at an estate sale.


Author:  msawyer91 [ Tue Apr 21, 2015 9:37 am ]
Post subject:  Re: Data drives won't boot`

It sounds like you've got a failing drive. The MediaSmart Server is fickle when a drive is on its way out. It's perfectly possible for a disk to be failing but it'll come back "clean" when a CHKDSK is run on a different PC. A failing disk isn't always going to be detected by CHKDSK, which checks the file system integrity and can optionally scan for bad sectors. Bad sectors are not always the demise of a disk. Other errors -- end-to-end errors are a big one; end-to-end errors mean there is corruption between the disk's onboard cache and the actual reading from or writing to the disk. Spin-up errors, raw read errors, ECC failures, etc. are all failure indicators and there is no guarantee CHKDSK will detect them.

My first inclination would be to tell you to install Home Server SMART. There are two versions of HSS -- Classic and 2015; the former is for WHS v1 and the latter is for WHS 2011, 2012 Essentials and 2012 R2 Essentials. Both are very recently updated, and both are freeware. Visit ... assic.html or to get Classic or 2015, respectively.

Now since it sounds like inserting the data disks in your server causes the server to lock up, getting Home Server SMART installed to check the disk health may not be an option. Fortunately, you can install WindowSMART 2015 on the machine you used to scan the data drives. WindowSMART 2015 is shareware, but runs for a full 30 days without limitation. Install WindowSMART, insert the disks and then make sure WindowSMART has plenty of time to conduct an initial polling of the disk. It can take 10-15 minutes before data appears, or you can go into the Settings (from the Edit menu), go to Service Control and click Restart Service. Restarting the WindowSMART service will cause an immediate polling. Do that, wait a minute, then click the Refresh button in the UI, and you should see the disk results. WindowSMART is available here:

Whichever tool you use, please take a screen grab and post your results here.

Author:  Running4Shape [ Tue Apr 21, 2015 9:17 pm ]
Post subject:  Re: Data drives won't boot`

So drive Zero failed. I will try to reload, or maybe repurchase. The reload function on my WHS has not been good over the past 6 yrs or so.

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