Active Hard Disk Monitor Pro V3.
Rubie Mccloughan
Active@ Hard Disk Monitor is a freeware disk utility that monitors the status of your hard drives and scan for bad sectors. The system is based on the Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.).
This software monitors hard disk parameters such as Temperature, Head Flying Height and Spin-Up Time and notifies a user when a critical condition occurs. Active@ Hard Disk Monitor also displays hard disk information, current S.M.A.R.T. attributes and the overall status of the hard disk's health. Advanced disk scan allows you to detect bad sectors on a disk surface. The software can be launched automatically at Windows startup and monitor the system in the background. An icon in the System Tray can display the temperature for selected HDDs.
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EditAnother quick data point here. If you look at the difference between an SSD and a physical disk, the SSD has significantly less activity, so I guess this really means the amount of time the operating system is waiting for the disk to respond and returning data.
Basically, it is the percentage of elapsed time that the physical drive(s) were busy. So Even though your MB/s usage may be low, the % busy time can be high if the disk is heavily fragmented, or is otherwise thrashing on lots of small operations.
On a server where you would try to match the right level of high-performing disks to the workload, you would consider the disk subsystem to be a potential bottleneck if the % active (busy) time plateau-ed above 80%. On a workstation if this number is high, it just tells you that your disk performance is maybe what is slowing down your work.
As to your last question: I'm quite certain it is the physical disk and not any kernel or process time. While waiting on the physical diskthe kernel blocks whatever processes is waiting on that disk operation, and uses the CPU for whatever else needs doing.
The highest active time is the percentage of time spent performing IO (actually processing time spent at the IO level). It can get to 100% if Vista is defragmenting or doing some other IO heavy operation and very little else is going on.
* Number of licenses corresponds to the number of disks you can erase in parallel:
- Freeware license can erase 2 drives concurrently on one machine
- 1 user license can erase 2 drives concurrently on one machine
- 2 user licenses can erase 2 drives concurrently on 2 machines
- 3 user licenses can erase 3 drives concurrently on 3 machines
- # user licenses can erase # drives concurrently on # machines
- Site and Enterprise licenses: unlimited concurrent erasures and installations
Active@ KillDisk gives you a fast, easy way to delete your files and folders for good if you're getting rid of your hard drive. While it's not as advanced as some other permanent deletion programs, it offers enough bonus features to keep you interested. The professional, welcoming look earns it a few extra points.
Simply deleting files, or even formatting the disk, does nothing to stop a determined snoop. This program, a powerful (and free!) set of tools, promises to do something much more useful. ...... once the program has done its job, there is no turning back.
We have been using this to satisfy data wiping requirements at the university before disposing of old equipment. It is very simple to use so we are able to have workstudies wiping the drives. It does take several hours on a 3 pass wipe, but I don't think anything can be done about the time due to the nature of what the software has to do. It would be nice if there were audible or more obvious visual prompts that a wipe has completed, so the workstudy can see at a glance without looking at the small status window.
If you have ever found yourself in the situation where you want to delete multiple drives, whether it is because of some confidential data that you want to get rid of or maybe some nasty virus has plagued your drives and you have no ways of removing it, then Active@ KillDisk might be the best solution for you. Active@ KillDisk is a data security application that permanently deletes any data on physical disk drives without any chance of recovering it.
At some point in time all of come to a situation where privacy or business might be in danger of unwanted leaks. This does not to be a situation where you might be an outlaw running from the police, you are just might an ordinary person who wants sell his old HDD.
More specifically, I suspect that for some (heavy load) servers after several optimizations on various parts of the program(s) that run on it, right now the bottleneck is simply the logging to files on the disk. But I find it very difficult to assess how much traffic the servers can handle.
For older kernels (say CentOS 5.x or RHEL 5.x) that do not support iotop, use topio instead (documented here: It relies on /proc//io for io statistics and provides similar functionality as iotop. See link for further details.
As suggested by sastanin in comments, you can process directly values given in /sys/block/sda/stat or /proc/diskstats. This may be helpful when none of the other mentioned tools are available and you can't install them easily.
examples: my laptop gets 82MB/sec from the SATA disk and 2GB/sec from the cache.My dekstop gets 12GB/sec from the cache and 500MB/sec from the HW RAID array.I suspect those last numbers could be double on server class hardware.
It won't tell you how much %age disk bandwidth you're using, since it doesn't know how much bandwidth your disk has. In any case, your disk only has the manufacturer's quoted figure for large transfers of contiguous data.
I think RRDtool should do what you want here it uses a daemon to dump system data and then allows you to process it however you like. I have often used it to produce graphs etc. to measure system load.
The issue is definitely something to be concerned about, as whilst it is happening, which can be seen when it shows 100% Active Time and Zero Data transfer in Windows Task Manager, it is unusable as it is extremely slow to even access and intermittently disappears from Windows 10 completely! So I would say it is not so much a concern, but rather a problem where the disk is not useable or reliable.
I have found erasing the disk has worked with both WD and Seagate disks. Both have the same problems and with a large population of disks I have discovered erasing disks recovers them 9 times out of 10. If that does not work then I RMA disks under warranty.
After another intermittent occurrence of the issue, I am currently performing a Full Erase (Estimated to take 12hours 40minutes) of the affected disk using the Western Digital Data LifeGuard Diagnostics Tool. Please can you confirm this is what you do, or is a Quick Erase sufficient in your experience?
Thank you again. I am surprised this is what is needed with a brand new disk which is not reporting any errors. I have completed the Full Erase now and will use it normally again and monitor the disk for a week or two, to see if the issue is now resolved.
Hello @nithronium. Thanks for reaching out. Now I know I am not crazy. I am on linux. Been poking around all day with odd things going on. Can confirm that my HHD is not behaving normally. I am running current Beta. Which version are you running?
I have a paid ProtonVPN and am familiar with everything on my network monitor (Etherape) except the http 80.3.197.104.bc.googleusercontent.com
80898319 25.5 KB
Which is going straight to kbounds56 local outside my VPN tun0. I am hoping the bc in the address stands for brave core.
4.When using the preview in Bleachbit to check the cache size (did not clean)observed odd behavior. Bleachbit has 2 icons on my my system. Regular and sudo. I normally open sudo first (password); and now it shows that regular is open.
5 Have noticed 100% cpu usage on 1 core something I never seen before.
@nithronium You are correct that this is / was in my case / a hard drive issue. Sadly, as I post this from my Epiphany ( Gnome Web Browser) , everything returned to normal after uninstalling Brave. I uninstalled by terminal with the Remove Recursively commands provided on this forum. Then I still found files .local , . conf opt , and places beyond my skill set. I have to give Brave a rest for the short term . Hope everything works out soon.
I'd like to do some general disk io monitoring on a debian linux server. What are the tools I should know about that monitor disk io so I can see if a disk's performance is maxed out or spikes at certain time throughout the day?
Just from files on your computer (assuming a recent kernel) you can ask /sys/block/sda/stat (documented at kernel.org) or /proc/diskstats. It will need some translating, however. But it's nice for a quick and dirty check.
The best thing to do if you want to see performance on a long period is to use Centreonwhich is a powerful tools build on Nagios. Centreon make you able to monitor by drawing graphs of resource's performances and lot of other things.
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