Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: What is blue sine wave on disk activity

10 May 2015   #11

Windows 7 Pro-x64

What new drive? I thought you had the drive in hand? If it's a 4Kn drive, it can't be formatted to 512e. It must have the "AF" logo. These drives can be formatted at 4K or 512e.

Also, your specs say HP 5150. There's a big difference and causes a lot of wasted time when folks use it for reference.

Forgot to mention:
Check with the drive OEM. The utility may not work with USB connected drives. Many have to be connected directly to the host controller (SATA port) for such utilities.

My System SpecsSystem Spec
17 May 2015   #12

Windows 7 home premium 32 bit

carwiz, here's an update:

5/17/15 Results of Windows Backup of C drive files and image 5/16-5/17/15

Took 19 hours.

5/16/15 11:02am - 5:50am ~19hrs - 358.35gb free of 2.73tb(??) bu size = 717.36gb
scale shows space (2.73tb) 3/4 consumed - not!
vol properties shows 721gb used/2.02tb free; resource monitor shows 2,861,427mb total, 2,123,039mb used.

Backup took 19 hours. Volume properties shows 721gb used and 2.02tb free. Backup shows 717.36gb used and 358.35gb free of 2.73tb. MS backup needs math lessons! Apparently converting the drive to work in 512e mode allowed the backup to complete but what a performance hit. MS really needs to address this. MS claims they fully support AF drives in Win 8/10, so the code exists - how about it, Bill?

Also, Realdownloader.exe (a service?) crashed about 4 times during the backup. It crashed many more times during the prior failed backups.


Attached Thumbnails
What is blue sine wave on disk activity-winbu_to_af_drive-wd_elements_3tb-.png   What is blue sine wave on disk activity-winbu_to_af_drive-wd_elements_3tb-explorer.png   What is blue sine wave on disk activity-winbu_to_af_drive-wd_elements_3tb-volprop.png  
My System SpecsSystem Spec
17 May 2015   #13

Windows 7 Pro-x64

I would turn off indexing for that drive as well as any other external or backup drive. While it does run in the background, it can take forever on large drives and bloats the indexing tables. This will slow other drives down. You may have to delete and rebuild the index if it's large.

I can't help you with Realdownloader. It's considered an aid for theft and against Forum policy.

Attached Images
What is blue sine wave on disk activity-disk-indexing.jpg 
My System SpecsSystem Spec

18 May 2015   #14

Windows 7 home premium 32 bit

I don't understand indexing - how does it affect backup performance?

As far as Realdownloader.exe is concerned, it was not in use; RP just loads it at boot I guess. Just mentiuoning a 'side effect' of the backup.

If MS isn't going to address this soon, I'll probably need to buy a smaller, non-AF drive for my backups. I found the HP support forums so I'll be looking to see if I have a chipset issue.

My System SpecsSystem Spec

 What is blue sine wave on disk activity

Thread Tools

Similar help and support threads
Thread Forum
UPS advice - stepped sine wave or pure?
My APC battery backup UPS needs a new battery, and I'm considering getting a new unit, as mine is approaching 5 years old. I've been reading that standard UPS devices put out a stepped sine wave that can cause issues and possible damage or reduced lifespan with newer Active PFC Power Supplies and...
Hardware & Devices
Disk Activity is Constantly 100%
My Disk Activity is Constantly 100%, i feel that my PC is running a Little bit slow then from task manager>resource monitor i see that my disk activity is 100% and also my Hard disk Light is Not Blinking(Light is Constant)... Why is that? How i Diagnose this problem and Solve it ... See This Image...
Performance & Maintenance
Disk Activity
i have a fresh install of W7 Pro 64 and finally got everything up and running on my new SSD. however, i get a lot of random disk activity. my Disk light on the front of my PC flashes quite a bit however it dos it sporadically. i have only 3 programs start with windows (steam, avast, realtek) and...
Performance & Maintenance
CPU Usage 100% -0%, 100% - 0 - Like a sine wave
Has anyone seen an issue in Windows 7 where my CPU usage goes from 0 to 100 then back and forth, like a sine wave? I had no apps running. If I reboot it becomes normal again. Ive tried to replicate what I was doing when I noticed it but nothing was found. This has happened 3 times in the last week....
Performance & Maintenance
Disk Activity Led having a heartbeat
Hello guys, I am having trouble lately with my disk drives. First of all the specs and then the problems : Motherboard : Gigabyte P67A-UD4-B3 Hard Drives : WD1002FAEX (Caviar Black Drive 1T) WD10EADS (Caviar Green Drive 1T) 2 x ST2000DL003 (Seagate Green Driver 2T) Those two are in...
Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 11:44.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App