Disk activity led

Is it normal that the disk activity led on the right side of my notebook (a lenovo 3000 N500 4233-5MG)
is blinking regularly even if there is no disk activity ?
I have installed a dual boot system with both Windows XP and Solaris 10 but I observed that there is no difference,
the led is always blinking.

Hi @Working_Stiffie
Welcome to the HP Forums!
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I see you recently had the power connector cable replaced and now the LEDS in the lower left do not light up. You are uncomfortable disassembling the notebook. It is most likely a loose or not connected cable as you said. As you just had it repaired I would take it back to the repair shop and advise him of the situation. He should be able to correct it for you.
Here is a link to HP G50 Notebook PC and Compaq Presario CQ50 Notebook PC Maintenance and Service Guide that will go over removal procedures if you would like to attempt this yourself.
Good Luck and Happy Holidays!
Sparkles1
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What happened to the Disk Activity indicator?

I'm a computer professional, and have had at least six Toshiba laptops in the past 15 years.I have always bought Toshiba for myself and reccomend them to my clients.
I noticed an important ommission in the most recent machine purchased for my own use. It's a Satellite S855, and it has no disk activity light.
Whose idea was it to omit this tiny, inexpensive and most useful item? It can't have been omitted because of cost! In a production run how much is saved per unit by omitting this device, five cents? I doubt that it even costs that much. What ever the price, I'd gladly pay the additional cost for something so useful to observing how the computer is running and whether it may be busy, overwhelmed or just frozen.
Please talk to the design group and tell them that we want our disk led back!
Sincerely,
Satellite S855-S5378
Satellite ProL550-EZ1702
Satellite P105-S6197
history of 4 other Satellites

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AnyName.{4234d49b-0245-4df3-b780-3893943456e1}
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T520 Constant disk activity

T520, 4 GB RAM, 500 GB hard drive, Win 7 Pro 64 bit,
Do any fellow T520 users see constant, about one flash per second, hard disk activity. I've turned off the usual suspects, including Windows Indexing Service and all the Intel security and management services and uninstalled Symantec Endpoint Protection 12, which has also been mentioned in certain articles about disk thrashing.
The side effects of this constant disk activity is that the computer will not enter sleep or hibernate due to inactivity, although I can force it manually.I'm also worried about premature disk wear.
Any hints would be gretly appreciated.
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HI mixz1,
I can't answer your question directly, but on my T400 running Win7 Pro 64 I also see the HDD LED flash ~ once per second. My guess it's monitoring drive status, not actually doing reads or writes. Even so, the machine sleeps as expected.
Z.
The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc. The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
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Xserve G5 Drive Module Activity LED problem

So, I have little problem with our Xserve G5.
Are there 3 HD's in the Xserve in RAID 5 config. The activity led (blue) of the first modul is not show any activity. But the megaraid is show that everything is all right with all of ADM's. The green/red led is show that, the 1st ADM is working fine (Green light), too. (There are 500 GB capacity on 3pcs 250 GB ADM in RAID 5)
Only the OSX Server was on the raid disks. We have an Xserve Raid for the storage.
Is it possible to really not activity on disk disk? Or the led is wrong... Or is there a contact problem betwen the ADM and the Xserve?
So I have tried something: I unlocked the Server with the key, and I opened the first ADM. The the 'handle' poped out. In this case the activity led was blinkin' correctly. Naturally the raid config was collapsed, but after I reconfigurated (not rebuilt, because it was faster, and only the OSX Server was on the disks) the led has "blinded".
Xserve G5 Other OS

If I pop out the ADM handy, the blue LED is blinking.
As I think the LED is working...
As I said, that I pulled out the ADM from its holder and the raid config was collapsed.
So, I will have another try with a brand new ADM later on this week. If it'll solve my problem, I inform you....
THX

FF 18.0.1 constant disk activity after 1 minute with no tabs open

FF 18.0.1 on Windows XP SP3.
Within 1 minute of starting FF I observe constant and excessive disk activity.
I am unable to use any other applications due to the response time.
I have closed all tabs and disabled all plugins.
I have just started a FF "reset to factory default", but pop-up window for "Please wait while Firefox cleans up your old data" has been running for 15 minutes.
Any ideas?

It sounds like you've got some other problems on your computer as well.
Restart your PC, then try the steps at http://www.microsoft.com/atwork/maintenance/speed.aspx#fbid=6pXkdz7T_94 to try to clean your computer up.
After that, Try to reset Firefox again.

IMac 27" i7 won't turn on. No disk activity.

Ive seen some similar dicussions here but none that are exactly like what happened to me.
The big problem is my iMac is stone cold dead. I push the power button and nothing happens, no disk activity, no fans, no nothing. As if it had been un plugged.
I dont know if it could be related but I was sing Boot Camp. I created the partition, it asked for the windows disk, I put it in. the iMac restarted, I got the chime and the gray screen (no apple logo). I was expecting the windows installer to start up, no luck. The iMac was on the gray screen for several minutes, then the apple logo appeared and then I got the log in window. I thought it was strange so I restarted and held down the "option" key, I got the gray screen for several minutes again. I then got the boot menu where I could see "Macintosh HD", "Bootcamp" and "Windows"(DVD). So I booted with the windows disk thinking it would start up the installer. Several minutes went by and it was still on the same screen. Then it restarted by itself, I heard the chime. Mind you, I had unplugged all the external hard drives I had and what not. So I pressed down on the touch pad to eject the windows disk. The disk ejected and the iMac got stuck on the gray screen for several minutes again. It restarted by itself. I thought I would leave it to boot all the way into Lion again. This time the gray screen didnt go away, I waited for over 20 minutes, got frustrated and pressed down on the power button for a hard reset. I powered on again, got the chime, then I got a black screen with white text saying it could not find a boot device. So I thought I would restart and hold down option key to boot from "Macintosh HD". I powered it down, and it never powered on again. That was it. No Hard drives spinning, no fans runnig, nothing.
I checked the outlet, plugged the iMac to a different outlet, checked the power cable, etc. It all seemed fine.
I reset the SMC, several times in fact, and nothing.
I even opened the Memory Access Door and removed and put back the memory cards. Not sure why, but Im desperate.
So Thats it. Im gonna take it to the apple techs but I thought I would get some comments from the community. Any ideas??? . Any help is appreciated.
iMac specs:
3.4GHz Quad-Core Intel Core i7
16GB 1333MHz DDR3 SDRAM - 4x4GB
2TB Serial ATA Drive
AMD Radeon HD 6970M 2GB GDDR5

Sounds like a failed power supply. Because the machine is covered by warranty take it into your local Apple Store or AASP for service. Make sure you book an appointment first. You can try doing a SMC reset and Pram reset first but I don't think they'll work.
SMC RESET
Shut down the computer.
Unplug the computer's power cord and all peripherals.
Press and hold the power button for 5 seconds.
Release the power button.
Attach the computers power cable.
Press the power button to turn on the computer.
PRAM RESET
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

"Disk Activity" monitor for multiple hard drives?

Is there something like "Disk Activity" in the Activity Monitor utility to show which hard drive is accessed? I put a SSD in my Mac Pro but it occasionally hesitates for a few seconds as if it's accessing a file on one of the other three (slower) hard drives. I want to see a list of files that it needs that aren't on the SSD, so I can move them over and speed up my computer, or remove the extra hard drive eventually.

Yes, it's possible.
However for the maximum length I have not figured out.
I haven't found a reason to go past 16 characters.

JPDA debug slow, CPU low, no disk activity

I tried to debug using JPDA with a Tomcat 4.0.3 target container. If I am very patient it finally connects after some good minutes. After that it debugs, even if rather slow.
However, during those minutes nothing seems to happen. CPU is low (under 5%), and there is no disk activity.
JDK is 1.3.1_02, W95 (yes, still), 256M.
Any ideas?
Thank you,
Florin

I tried to debug using JPDA with a Tomcat 4.0.3 target container. If I am very patient it finally connects after some good minutes. After that it debugs, even if rather slow.
However, during those minutes nothing seems to happen. CPU is low (under 5%), and there is no disk activity.
JDK is 1.3.1_02, W95 (yes, still), 256M.JPDA is really slow in Hotspot/Classic before JDK 1.4 (it's interpreting all the bytecode vs. running it natively). Try using classic if it's available instead of hotspot, it seems to be a bit faster at debugging.
Also, if you can, try JDK 1.4. It's JVM is MUCH faster at debugging than 1.3 is.
Hope this helps,
Rob

Computer unresponsive with disk activity, even when disk is USB

Hi,
I've always had issues with responsiveness with Linux when there is disk activity (several distro's, same hardware), whereas a Windows XP installation reacts very snappily. When I have a torrent client open, Mplayer keeps hanging a few times a minute (even more often when the download is going fast (2 MB/s)).
Recently I migrated to ext4 in the hopes that would fix it, but it didn't. It's also not something as simple as a DMA issue (because it's SATA). Disk throughput is about 80 MB/s, which is OK.
Anyway, currently, I'm performing this on a USB disk:
dd if=/dev/zero of=/dev/sdc1 bs=10M
And even then the computer is almost unusable, which it shouldn't be, because the internal disks are not used for this. And some time back when I was copying an AVI to a USB stick, it was utterly unusable.
Maybe it's a driver issue, because I can't imagine the normal schedulers being so horrible, but I can't say.
My disk controller can't be accessed with AHCI (there is no 'native' option in the BIOS), yet NCQ is enabled:
# dmesg|grep -i ncq
[ 1.313605] ata3.00: 2930275055 sectors, multi 16: LBA48 NCQ (depth 0/32)
[ 1.800338] ata4.00: 2930277168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[ 2.324738] ata6.00: 488395055 sectors, multi 16: LBA48 NCQ (depth 0/32)
I have kernel 3.1.1-1-ARCH, so I should have the 'wonder patch'.
Hardware:
CPU: Athlon X2 3800+ (2GHz dual core).
RAM: 2 GB DDR400 RAM.
Chipset: Nvidia nForce 4 ultra.
Disks (in MD RAID1): 2 WDC WD15EARS-00Z5B1 (disks have changed over the years) and 1 Seagate disk (which contains windows and is spun down in Linux, to prevent noise).
I disabled the (self-destructing) head parking feature of the caviar green disks with WDidle by setting the timeout to max (disabling the head parking with WDidle actually lets it trigger constantly, that's why I chose this way).
Lspci:
00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3)
00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3)
00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2)
00:02.0 USB controller: nVidia Corporation CK804 USB Controller (rev a2)
00:02.1 USB controller: nVidia Corporation CK804 USB Controller (rev a3)
00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev f2)
00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3)
00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3)
00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2)
00:0a.0 Bridge: nVidia Corporation CK804 Ethernet Controller (rev a3)
00:0b.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:0c.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:0d.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:07.0 Multimedia audio controller: Creative Labs SB Audigy (rev 04)
01:07.1 Input device controller: Creative Labs SB Audigy Game Port (rev 04)
01:07.2 FireWire (IEEE 1394): Creative Labs SB Audigy FireWire Port (rev 04)
01:08.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
01:08.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
05:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9500 GT] (rev a1)
# cat /proc/mdstat ( which shows no write intent bitmap to slow it down):
Personalities : [raid1]
md1 : active raid1 sda2[0] sdb2[1]
1464969720 blocks super 1.0 [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
156788 blocks super 1.0 [2/2] [UU]
unused devices: <none>
Anybody know what might be causing this?

I recently tried to play around with the schedulers and I found out that using "deadline" for my internal drives, "cfq" for my optical drive and "noop" for everything else. I tried copying a load of small files on my USB flashdrive while playing a movie from the optical drive and the system felt very responsive.
I've been playing some more, and you're right in that it seems that with the internal disks at deadline, the system is a lot more responsive. Previously, I put the external disk I was zeroing at deadline too, but that (I know now) made it worse again.
I run a 3.2-rc5 kernel which seems to help considerably though.
Has there been any specific change in that kernel to cause that?
BTW, I noticed that the NCQ queue on your drives is of 0 length, try setting it o 31 like this (as root).
I always wondered about the NCQ queue. In pages about NCQ that I found, the dmesg also reported a queue of 0. I just always figured it meant how many commands it currently had, being zero at boot time.
When I do "cat /sys/block/sda/device/queue_depth" it always says one, regardless of disk activity.

[SOLVED] High disk activity after kernel boot

Hi,
after kernel loading (just before getty starts) i notice extremely high disk activity for ~20 seconds for no reason. I think that it is something related to systemd and mount services.
When i set rootfs to read-only in syslinux kernel parameters then the system starts normally without delay. So, i think that something is constantly writing to (or checking?) my hard disk right after boot sequence.
I'm using kernel 3.7.9-1-ARCH.
$ systemd --version
systemd 197
+PAM -LIBWRAP -AUDIT -SELINUX -IMA -SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ
$ systemd-analyze
Startup finished in 3121ms (kernel) + 6238ms (userspace) = 9360ms
$ systemd-analyze blame
1289ms NetworkManager.service
1173ms colord.service
812ms systemd-logind.service
722ms systemd-binfmt.service
660ms systemd-udevd.service
639ms systemd-sysctl.service
314ms tmp.mount
305ms systemd-remount-fs.service
300ms upower.service
219ms systemd-tmpfiles-setup.service
168ms polkit.service
160ms dev-sda2.swap
156ms systemd-vconsole-setup.service
129ms wpa_supplicant.service
125ms dev-mqueue.mount
121ms dev-hugepages.mount
108ms systemd-udev-trigger.service
101ms verynice.service
59ms systemd-user-sessions.service
48ms boot.mount
47ms hpfall.service
46ms home.mount
43ms cpupower.service
27ms sys-kernel-config.mount
4ms proc-sys-fs-binfmt_misc.mount
Syslinux kernel parameters (either ro or rw has the same result)
APPEND root=/dev/sda3 rw nomodeset vga=current clocksource=acpi_pm libahci.ignore_sss=1
Tried also with fsck hook and removing sda3 from fstab
APPEND root=/dev/sda3 rw nomodeset vga=current clocksource=acpi_pm libahci.ignore_sss=1 rootflags=noatime,barrier=0
my fstab:
# UUID=925aba97-6805-442b-bb51-3ea6c16a5a86
/dev/sda3 / ext4 rw,noatime,barrier=0 0 0
# UUID=dd60df02-7992-43c1-a0e0-79441e23268e
/dev/sda1 /boot ext4 rw,noatime 0 0
# UUID=d2621666-f2c5-4f36-8da3-c0f21a23246c
/dev/sda4 /home ext4 rw,noatime 0 0
# UUID=3d70bc7d-5b0c-4adc-ba84-f32c9d132bcc
/dev/sda2 none swap defaults 0 0
Thanks for your time.
Last edited by anelehto (2013-02-23 14:27:41)

It was a problem with preload and its configuration.. I removed it and everything went back to normal!

What can I do about my 20 inch iMac (Core Duo) doing a LOT of disk activity?

What can I do about my 20 inch iMac (Core Duo) doing a LOT of disk activity?
I have iStat and can see the disk activity which halks other operations till it finishes.
Is there some built-in Optimization software I should use?
Thanks,
Tom

Please carefully read Pondini's Time Machine Troubleshooting guide.

For OS X: Whenever I have internet access my disk is running continuously for a period of time without any activity on my part. When I close internet access the disk activity stops. Who is fishing for data?

For OS X v5 or 6: Whenever I have internet access my disk is running continuously for a period of time without any activity on my part. When I close internet access the disk activity stops. Who is fishing for data?

Thanks for your reply. I don't use itunes so that couldn't be it. Reading about Little Snitch and Hands Off, however, educated me about the data harvesting in many apps and that when buying from the AppStore one will more likely get Apps with benign data harvesting.

PRoblem with harddrive activity led when two cdroms are plugged in

I am currently having problems with my hard drive led on my k7t266 Pro2-A whenever I have my harddrive, dvd drive, and cd burner connected the hard drive activity led doesn't do anything it just stays constantly on. I have things setup like this: the hard drive WD 80GB Special Edition is master on IDE1, the TDK cd-burner is master on ide2 and the dvd drive is slave on ide2. If I unplug the dvd drive the led wors like it is supposed to, but with it plugged in it just stays on any help would be appreciated.
Athlon XP 2200+
768MB DDR pc2100
WD Special Edition 80gb 8mb cache
TDK 48/16/48
16x dvd
msi geforce4 ti 4400 Championship edition 128mb ram
MSi tv@nywhere
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1 linkysys ethernet 10/100
1 3com ethernet 10/100

I would try to put both CD drives on one IDE and the HD on IDE #2. Play with the jumpers on the back of the CD drives, make one master and the other slave. I have had good luck with auto detect, but have one DVD player and one burner just compete with each other and both want to be the master.

Constant CPU and Disk Activity

I just upgraded my MBP from Tiger to Leopard, and also upgraded from trial to full .Mac account, so I now have an iDisk for the first time.
I have iStat Menus installed and where, before the upgrades, the CPU graph showed a very low level of activity (almost zero) when the computer was idle, it now looks like a picket fence, with spikes reaching almost to the top of the graph. The disk activity graph exactly matches the CPU graph with regular spikes, which occur about very 7-8 seconds.
I opened Activity Monitor, and the highest usage switches between 'Sync Server' (with a value of anything from 2 to 9) and 'kernel-task' (with a value of around 2.5). Something called 'mds' sometimes pops up to the top (with values of 2-3). It appears the culprit is 'Sync Server'. I've tried iDisk sync set to 'Manually', and also with it turned off altogether, but it makes no difference.
Does anyone know what's going on here and, more importantly, how to get my MBP to relax again.
Thanks in advance,
Steve = : ^ )

I'm resurrecting this question because the problem still exists. Restarting the computer always stops the spikes but they always start up again at some point (I'm yet to pinpoint a cause) and, once happening, I can quit all running apps (except Finder) and they persist, and they seem to occur about 10 secs. apart.
The spikes occur in both cores but, if one core has a big spike (close to 100%) the other's is small and vice versa. Or they both have moderate spikes. It seems the total usage is about the same for every spike, though spread differently between the two cores.
And the HD still shows activity at the same rate as the spikes.
Any ideas what I should look for?
Thanks in advance,
Steve = : ^ )
Message was edited by: Steve_Ball

Excessive disk activity with Safari 3.2.1

Since updating to Safari 3.2.1 on os 10.4.11, my hard disk begins a lengthy bout of intense disk activity within a minute or two of opening Safari. It just keeps chunking away, and it only stops when I quit the browser. This happens whether or not I load any pages.
Looking at Activity Monitor when this is happening, it is clearly Safari that is causing the excessive disk activity. And during these periods, Safari is using 15% to 30% CPU.

I see the same thing:
http://img.skitch.com/20090212-pbe1s4wprd6rjmjiq3sfe1s961.jpg
It just plugs away, using 33% of CPU. Very small network usage.
What is it doing? As for 'resetting' it, what do you mean? Just quit and restart Safari? OK, but this happens consistently.
Any thoughts?
Safari Version 3.2.1 (5525.27.1)
Message was edited by: Tor Lundgren

Disk activity led

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