I've been looking for a good data integrity test tool for linux, but I'm having trouble finding one. Basically I'm looking for an application that will generate a heavy I/O load to a raw device and then perform some kind of data verification on the device. I my case the raw device will be md raid5 array.
View 1 RepliesIs there a way to test the integrity of USB sticks?
View 4 Replies View RelatedIf you do, after the completing the test - it will eject the CD.
and how are you going to reinsert the CD to complete your install? you're remote remember ??
I have a seagate SATA hard drive that was running a mythtv distro. It had 3 partitions, EXT3, swap, and XFS. I started having I/O errors on boot and saw error messages on both the EXT3 and the XFS partitions. I also heard some clunking sounds on the drive when it was reading, so I thought hell, the drive is dead.
I have since replaced the drive and everything is back up and running on the replacement drive. I thought hell, the seagate drive is toast, but I just want to verify it with some sort of tool. I have the hard drive in a Vantec NexStar external hard drive case (SATA->USB) and found there was a tool called badblocks. Ran badblocks on it, which ran for 24ish hours and found no bad blocks. I also didn't notice any clunking sounds while it was running.
I ran
Code:
badblocks -n -v /dev/sdb
Is badblocks a proper test to run on external hard drives or was I just wasting my time? Is there any way that I can really test it without removing it and connecting it with SATA to the motherboard?
I'm currently backupping our home data (pictures, videos, our CDs ripped to FLAC which I spent a lot of time to tag accurately ), totalling almost 300 Gb, on 2 external USB drives, one of which is meant to stay at a friend's. I left the factory msdos filesystem as it was, thinking it could be useful to be able to connect the drives to a windows machine with no problems. It's certainly useful to have «normal» data that I can take with me e.g. when visiting my family.
I'm simply using rsync manually, checking for suspicious changed or deleted file before commiting the change. I do that every 2 weeks or so.
Now I want to add a file integrity management to my backupping scheme: I want to be able to check that new data I'll be committing has not been tampered with (integrity check before updating tags on my main drive), and I want to be able to check that backupped data is still sane on my USB drives, especially if I need to recover from data corruption on my main drive.
Since I'm essentially mirroring the data, I thought run of the mill integrity software would let me just rsync the integrity database, and I'm done.
But after browsing through the docs of tripware, afick and the like, I fear they work only with absolute paths, so the database for my main drive wouldn't work for my USB drive, that's mounted elsewhere when I plug it in, obviously.
So, I feel I'm missing something. It looks to me I'm trying to solve a very common problem, how do people do it?
Did I miss a file integrity software that works with backups?
Is there a trick like using a symbolic link pointing to whatever file hierarchy I want to check, and have tripware/afick/... monitor that link?
Should I run a more elaborate backupping system than plain rsync? Which one? (Storebackup for instance looks promising since it involves md5 sums, but it's targetting a completely different problem, and I'm not sure I can use it at all for what I need.)
Is there a way, a command, or a program that can be used to test the integrity and/or to check the data on an external hard drive?
View 5 Replies View Relatedhow to test the AES Encryption in the openSuSE 11.3
View 1 Replies View RelatedI am trying to search a tool for testing multicast. Currently, 'yum search multicast' yields nothing. I saw mcsender and mctest in google but they seem not to be supported in CentOS. Do you know any tool that can test multicast?
View 3 Replies View RelatedAny tool where I can test a web site with slow connectivity? E.g.:
A web server running at Location A
and from Location B want to test the web site hosted at location A with various speeds
How is the loading of the web site from location B at 256kbps, 512mbps etc..
Well someone has been putting up this attack on my game-server ports. For those of you who don't know what type of attack this is, so its an attack which is actually masked to us because the attacker uses his machine to send packets to a machine called source which reflects the packets to destination. Based on this, the UDP port under Flood at the destination starts making outgoing connections to that IP and gets rejected which uses up more than 5mb/second bandwidth instantly.
I've worked out on some security for this and now need a tool to test this against my machine. I've used PentBox but that's not really powerful to do anything. As I search Google, I find something called Trinoo but can't download or test it.
As part of my testing, I need to find a tool that will write/read IO to a volume. I need it to fill the volume and then read and verify that the write was successful. hroughput stats would be a plus, but right now, IO verification is a must.I need the volume to write, read, verify, then repeat until the volume is full.Can anyone point me to a free tool that can manage this?
View 1 Replies View Relatedanybody knows nice tool to check connection speed UPLOAD / DOWNLOAD on the server ?Maybe existing something like speedtest.net for servers ?
View 3 Replies View RelatedI would like to know as you see in windows, when you plug in a device it tells you some thing whether it is 2.0 or not. Is there a way to tell if the usb extension cable is 2.0 compatible? How about the usb device itself?
View 1 Replies View RelatedI build a new test machine where i need to bring data from live machine. the data is kind of flat files and some propreitary application axigen mail server.
now what i am suffering from, which commands to do first practise. there is remote site with 1mps speed of wireless between live and test machine. on daily basis aprox 14gb .tar.gz files it need to move it.
i found scp,rcp,rsync,sftp etc. which is fastest way to replicate or copy to remote machines.
the data is on live machine /var/opt/application and on remote same directory too /var/opt/application
i try using scp it take aprox 8-10 hours to copy single 14gb file.
if possible where to see such commands logs results, if anything get down error discontinue while copying.
I'm working on testing some software, and I have a question. We have several files of binary data that we need to push through our application to test. It communicates via simple TCP sockets. Is there a way I can send this data to the socket from the command line? I tried doing something like this, but telnet never picked up the data.
View 5 Replies View RelatedIf you have a proxy and receive/send data from/to both the client and the server,is there a way to test what part has data to send(client or server) ?
View 1 Replies View RelatedI am new to linux having just abandoned Windows due to stability issues. I have a Hauppage remote with a usb ir receiver. This worked fine under windows using the drivers for the windows media center remote. I can't however get this to work under Linux. What I am really looking for is a method, perhaps using a command line in the terminal window to be able to test and see if the OS has actually detected the device. I have tried irw, but there is no response. If I know that the device is connected, then I can start looking at issues of identifying the correct drivers for the device.
View 6 Replies View RelatedI'm trying to learn how to use foremost, a data recovery tool. I thought a nice place to start would be by attempting to recover a file from a test image. The foremost website links to this site which has a FAT Undelete Test #1 challenge. The challenge is to recover files from a 6 MB FAT disk image. I tried running this command. foremost -t all -i /home/<user>/Desktop/6mb.img -o /home/<user>/Desktop/output but all I got was a folder with an audit.txt file in it.
View 5 Replies View RelatedI deleted files on my linux drive that I shouldn't have. What is a good tool to use to recover these files that will:
Recover the various file types (txt, php etc)
Recover it as the original files names
TestDisk and PhotoRec almost do the trick, but the original filenames are not restored.
I'm looking for a tool similar to synctoy in linux. For those who dont know what synctoy does is... its a simple syncing application that allows you to copy your data between multiple hard drives and keeps all copies in sync with the latest data. I'm specifically looking for KDE based tool if KDE based is not available then my second preference will be for gtk based app.
View 2 Replies View RelatedI tried to recover deleted data using testdisk tool and now my partition table have some errors. Even though i have 3 partitions and 1 unallocated disk fdisk -l shows only 1 partition
Code:
vishnu@vishnu-laptop:~$ sudo fdisk -l
[sudo] password for vishnu:
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x68000000
[Code]...
Is there any tool similar to NetMonitor for Ubuntu, which can be used to monitor the data usage.
View 1 Replies View RelatedFor several days I have tried to create a new raid5 array, after accidently blowing up the old one.But it seems that the raid data was burned into the harddisks ineradicably. I keep seeing the raid data that was used for the old array. I have tried everything to remove the old data, even installed a new distro but still I see the old data.My last hope is to erase the disks with a lowlevel tool to make a clean start.
View 4 Replies View RelatedI have a WAN network that i need to do some analysis on, for the traffic flows. I did lots of googling to figure out what useful tool to collect the packet informations.I found this site [URL]..witch i made great use of to recognize the tcpdum tool. I also have a network simulator on windows platform wich is Opnet Guru, (by the way.. is there a linux version for this simulator?).
MY QUESTION IS: How can i feed the Opnet Guru with the flows data collected with the
Code:
tcpdump
with its different options?
NOTE: in the Opnet Guru invironment there is an object called the profile that is beeing used to customize and genarate data flows with the desired characteristics to simulate the real flows. So i need to feed the Opnet with the fresh data collected with the tcpdump tool (command) instead of using the built-in profile.. i hope i was clear enough..
I want to know which backup tool is used in Linux to back up data from windows machine to linux machine, is amenda? Please guide me.
Also tell me where to download it from?
Is there a open-source data protection management tool that anyone knows about and/or can recommend?
View 1 Replies View RelatedI have a WAN network that i need to do some analysis on, for the traffic flows. I did lots of googling to figure out what useful tool to collect the packet informations.I found this site http://scrutin.wordpress.com/2007/04...-tcpdump/witch i made great use of to recognize the tcpdum tool.
I also have a network simulator on windows platform wich is Opnet Guru, (by the way.. is there a linux version for this simulator?).
MY QUESTION IS::
How can i feed the Opnet Guru with the flows data collected with the
Code:
tcpdumpwith its different options?
NOTE: in the Opnet Guru invironment there is an object called the profile that is being used to customize and genarate data flows with the desired characteristics to simulate the real flows. So i need to feed the Opnet with the fresh data collected with the tcpdump tool (command) instead of using the built-in profile.
Using jessie over 4.2.8 or 4.3.4 kernel.
Used both the default bluez package, 5.23 and building bluez 5.36 by hand.
hciconfig shows a good configuration,
hci0: Type: BR/EDR Bus: UART
BD Address: 78:A5:04:31:3C:4B ACL MTU: 1021:6 SCO MTU: 180:4
UP RUNNING
RX bytes:82105 acl:0 sco:0 events:1989 errors:0
TX bytes:516 acl:0 sco:0 commands:48 errors:0
hcidump -x does show Commands/Events received, beacons are being seen, and collected by our app.
> HCI Event: LE Meta Event (0x3e) plen 42
LE Advertising Report
ADV_IND - Connectable undirected advertising (0)
bdaddr F9:77:66:E8:F7:8B (Random)
Flags: 0x06
[Code] ....
However when the app tries to connect it always gets connection refused at gatt_connect.
gatttool behaves the same way, and hcidump does not show any connection attempts, implying no connection between gatttool and the device, although it is specified on the command line.
Finally although the bluetoothd is running bluetoothctl also shows no default controller found. I had edited /etc/bluetooth/uart.conf, adding an hciattach entry for the device but that changed nothing when restarting the bluetoothd. Entering a garbage entry into that file does not produce any errors, so I am not sure it is even being read.
Also systemctl|grep bluetooth shows :-
sys-devices-virtual-bluetooth-hci0-rfkill0.device loaded active plugged /sys/devices/virtual/bluetooth/hci0/rfkill0
sys-devices-virtual-bluetooth-hci0.device loaded active plugged /sys/devices/virtual/bluetooth/hci0
sys-subsystem-bluetooth-devices-hci0.device loaded active plugged /sys/subsystem/bluetooth/devices/hci0
bluetooth.target loaded active active Bluetooth
/sys/devices/virtual/bluetooth/hci0/address shows the correct MAC, but /sys/subsystem/bluetooth/devices/hci0 does not exist, a post elsewhere indicated this was not a problem but that seems odd.
Is the uart.conf file still used([URL] .... would suggest yes) and if so is the format a full hciattach command or merely the hciattach parameters?
I want to send raw data to a usart port of my board connected to linux box. i know the command
echo "abcxyz" > /dev/<usb_dev_file_name>
would write the raw bits for characters abcxyz to the usb device but the problem is how do i know which device file to write to?there are so many in my /dev.
I wish to read the Manufacturer data and other details such as Device ID, Serial number on a USB drive.
1. Could anyone help me out with information on the memory structure of a USB drive? (which location is the mnfr data stored?)
2. Are there are any commands in Linux that will help in reading/accessing this data?