Thursday, December 29, 2011
OneKey Recovery 7.0 error code 0xEB1b068A
Monday, December 5, 2011
Install language support in CentOS 5
I ran the command
yum install "@Chinese Support"
Now, I have no trouble reading Chinese with Firefox.
Sunday, December 4, 2011
NetWorker cloning for DataDomain boost device
At the same time, it only sends the delta to the clone destination (given the destination is boost device). This shorten the time for cloning after backup.
If the read or write media are not boost device, it should fall back to the one to one ratio (legacy way).
However, be very careful if your storage node is a very busy storage node, for example, SQL cluster. Because dedup happens on the storage node (storage side dedup), this can cause heavy CPU usage. So, best option is to config your SQL cluster as dedicated storage node with AFTD.
Friday, November 18, 2011
website safe to browse
http://safeweb.norton.com/
http://sitecheck.sucuri.net/scanner/
Thursday, November 17, 2011
Unzip 7zip file in Centos
Install p7zip package as shown below.
Install p7zip to unzip *.7z files on CentOS
# yum install p7zip
Uncompressing a *.7z 7zip files in Linux using 7za
$ 7za e myfiles.7z
7-Zip (A) 9.04 beta Copyright (c) 1999-2009 Igor Pavlov 2009-05-30
p7zip Version 9.04 (locale=C,Utf16=off,HugeFiles=on,1 CPU)
Processing archive: ../../myfiles.7z
Extracting myfiles/test1
Extracting myfiles/test2
Extracting myfiles/test
Extracting myfiles
Everything is Ok
Folders: 1
Files: 3
Size: 7880
Compressed: 404
7za – command name
e – specifies the 7z to be extracted
myfiles.7z – is the file that is to be extracted
Creating a 7zip compression file in Linux
$ 7za a myfiles.7z myfiles/
7-Zip (A) 9.04 beta Copyright (c) 1999-2009 Igor Pavlov 2009-05-30
p7zip Version 9.04 (locale=C,Utf16=off,HugeFiles=on,1 CPU)
Scanning
Creating archive myfiles.7z
Compressing myfiles/test1
Compressing myfiles/test2
Everything is Ok
Tuesday, November 15, 2011
rpm for ATI video card
Or you can download the rpm from pkgs.org. Two required rpm are
flgrx-kmod
flgrx-x11-drv
My machine is running CentOS 5.7.
I ran rpm -i flgrx-kmod flgrx-x11-drv to install the packages.
If fglrxinfo says “mesa3d.org” instead of “ATI” Like below: (found in Madathil Unni's Blog)
you may need to type this command as root:
#set opengl ati
Now, opening the VM running Windows XP, you should not have no trouble enabling 3D accelerations on your XP VM.
Saturday, October 1, 2011
Virtualizing backup server
1) Backup requires CPU and network. Can the ESX host handle it? Is it shared with other busy VM on the ESX host
2) Why do you want to virtualize the backup host? If environment is busy, backup server is not a good candidate for virtualization.
3) If you plan to virtualize the master server for replicating it continuously to remote site, the media server should be physical in this case. The master server should only handle backup software database and indexing only. If you have huge NDMP job, the index will take away a lot of CPU from the master server.
4) Are you plan to connect FC library to your master server? Keep in mind, connecting FC tape drives / library to VM is not supported by VMware. (Reference: VM KB1016407 and 1000024)
5) If you connect SCSI tape library, what if there is hardware fails and requires vMotion?! Your backup will not work.
Please consider the above before even thinking about virtualizing your backup server.
No option to format USB memory stick as NTFS
Basically, you need to open Device Manager and locate the USB memory stick. Open up the properties of memory stick and select "Optimize for performance" under policies. Now, I can format my memory stick with NTFS partition.
Tuesday, September 6, 2011
Reset counters for Brother Colour Laser Printer HL3070
The following instructions are found in google by mizlang. I never try the drum reset, but you can try.
Toner Reset Menu for Brother HL3070:
1. Open Cover where you access toner cartridges
2. Press CANCEL & SECURE PRINT buttons at one time and you'll see the toner menus on screen
3. Press + or - to navigate through to the toners you need to reset. Note that each toner has 2 entries here, and I'm not sure why. Would love to hear what each one does, if anyone knows.
4. I'm guessing that the OK button will be the actual reset of the toners, if not then the go button would be I guess, but I couldn't confirm this, since my toners didn't currently need reset.
I also found the reset menu for the durable parts counters:
1. Open cover where you access toners
2. Press GO and + button at once, you'll see menu come up displaying reset counters for drum, fuser, etc.
Sunday, September 4, 2011
DD880 with 10Gb ethernet
http://www.intel.com/support/network/adapter/pro100/sb/CS-030612.htm
What if you must use longer cables? Intel Ethernet SFP+Optics will be the anwser. Cable length depends on the speed, cable specifications, and which optical module is used. Cable Lengths for Intel Ethernet SFP+ Optics provides the operating range in meters for optical cables used with Intel Ethernet SFP+ Optics.
http://www.intel.com/support/network/adapter/x520server/sb/CS-031094.htm
What are the SFP+ direct attach cable requirements for the Intel Ethernet Server Adapter X520 Series?
A: Any SFP+ passive or active limiting direct attach copper cable that comply with the SFF-8431 v4.1 and SFF-8472 v10.4 specifications Maximum cable length for passive cables is 7 meters Support for active cables requires Intel Network Connections software version 15.3 or later
Sunday, August 7, 2011
Turn off TCP chimney in Windows 2008
To turn off TCP chimney, run the following command
netsh int tcp set global chimney=disabled
To confirm it is turned off, run the following command
netsh int tcp show global
Monday, July 25, 2011
restore to proxy on VADP
Believe it or not, when I work in support, I always discover customer has no space in the SAN for recovery of large VM and they want to keep existing VM. Now, I cannot recover the whole image to proxy and then use VMconverter to move it to a VM Workstation. It has to be recovered to ESX. I will consider it a lack of feature when comparing it with VCB.
Monday, June 27, 2011
NTFS read/write in Linux
You can also use older version for CentOS and save you time by installing the rpm. Run the following command
yum list fuse-ntfs-3g
yum update fuse-ntfs-3g
Once completed, run rpm -qa | grep "ntfs" to confirm the installation of rpm. Now, you can read and write on your NTFS formatted USB drive.
Tuesday, May 24, 2011
What CentOS Linux kernel available?
I try to upgrade the kernel for my CentOS 5.4. I try to run yum upgrade kernel-smp and return no result. Eventually, find out this is changed in CentOS 5. There is no more kernel-smp. The following info is found in CentOS wiki page. So I run
"yum upgrade kernel" for my 64 bits dual processor laptop.
CentOS 5 provides the following kernel packages:
kernel: Contains the 'normal' kernel. This kernel includes support for both UP and SMP machines.
kernel-PAE (x86-only): Contains a kernel with support for 64GB of memory on x86 systems through Physical Address Extensions (PAE). Only x86 CPUs that support PAE can run this kernel. This kernel is provided because x86 systems can't address more than 4GB of memory without PAE extensions.
kernel-xen: Contains a Linux kernel that runs on the Xen hypervisor, for both privileged (dom0) and unprivileged (domU) domains. The Xen kernel is compiled with PAE support.
Reference page: http://wiki.centos.org/FAQ/CentOS5