Jump to content
Covecube Inc.
  • 0
Spider99

Running SMART on more than one disk on same controller

Question

Chris

 

I have been running two disks at the same time on the same controller as we discussed last night

 

Have noticed some odd behaviour

 

 

 

 

 

if you look closely at the bottom profiles you will see that scanner is alternating between disks - although it favours Disk 1 slightly more than Disk 2 - Disk 1 started first and within a few seconds Disk 2

 

Disk 1 has finished and Disk 2 is about 45 mins behind - again odd as same type of disks and normally show very similar performance

 

Also the "Active Time" graphs are odd as its saying the disk is 98%-100% when clearly its not - because when a disk is 100% active scanner is not reading any data?

 

Accept some of this might be MS but overall a bit odd

 

T

 

 

Share this post


Link to post
Share on other sites

4 answers to this question

Recommended Posts

  • 0

ugh, ignore.

 

Seriously, just ignore.  The "disk usage" here means LITERALLY NOTHING.  Since there isn't a set "max" for the drives, this is based on a window of time.  You can have 10kB/s of activity and it will register as 100%.  I've seen it do that. 

 

If you want to check performance, then check StableBit Scanner.  Right click on the column header and enable "Performance" and "Disk Queues".  Performance is the actual speed the disk activity is running at... and the Disk Queue is the number of "outstanding I/O requests" (this shouldn't exceed 2 per disk platter in the drive, depending on the disk,  but any number is fine for SSDs, as long as it's not sitting at that number of a long period of time). 

Share this post


Link to post
Share on other sites
  • 0

Yup.  you'd be amazed at the number of times you'll see this posted on tech support forums.... "My disk is running at 100%".... while it's doing next to nothing. 

 

Go Microsoft.....

 

 

 

 

Like I said, actual activity and disk queues are the best way to tell how active the disk is.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

×
×
  • Create New...