Comment Been doing this for a while (Score 1) 260
I recently had 20 drives across three machines. I was using a combination of raid5, iscsi, mhddfs, and samba. Machine1 mounts the iscsi devices from the other two machines, and then mhddfs combines them into one virtual filesystem. Samba is then used to share files out with laptops.
What I found is that network card drives in 3.2 kernels are currently in a horrible state. They crash left and right under real load. This is after trying different brands, tweaks, version of drivers, etc. In addition it seems iscsi client in Fedora 16 is also not in a great state. Independent of network issues, I would still get failures. The machine running CentOS 6.2 used to be Fedora 16, but was converted to make things more stable.
My latest plan is to do basically the same thing I was doing before, but on a smaller scale. I am going to retire the 1tb drives in Machine3, and replace them with the 2tb drives from Machine1. I am also going to convert Machine3 to CentOS 6.2 for stablility. Then Machine2 will mount Machine3's iscsi device, and use mhddfs and samba. This reduces the number of machines involved from three to two, and takes Fedora 16 out of the mix. It will also reduce the number of drives involved in mass storage from 20 to 14.
I plan to add two 2tb drives to Machine1, for storage, but it end up being only a desktop.
Machine1
Fedora 16
6x2tb raid5
Machine2
CentOS 6.2
5x1.5tb raid5
3tx2tb raid5
Machine3
Fedora 16
6x1tb raid5
Comment Re:Grub2? (Score 1) 125
I hear you, it does feel like a downgrade. On the other hand, grub1 is not working for me. I upgraded to Fedora 16 last night. At first GRUB2 gave me simply "GRUB", and GRUB1 gave me "Error 16". I tried multiple tricks to get GRUB1 working, and was unsuccessful. What I finally ended up having to do was use GRUB and make the empty space at the beginning of the drive 2047 blocks instead of the previous 62. To do this I had to backup the contents of
I also recently ran into the Error 16 error with GRUb1 on Fedora 15 on my mail/web server. To workaround it I ended up installing GRUB2 from Fedora 16.
Comment Re:Anonymous has done this. (Score 1) 320
I am doing very much the same thing. I have six 1tb hard drives in my main desktop, and five 1.5tb in a iSCSI server. I then combine them with mhddfs. It is slow, but I only use it for big files that I am not going to be rewriting. I use linux software raid5 for the big filesystems, and linux software raid10 for my
I am excited to see 4-5tb drives coming down the pipe. With just four 5tb drives I could replace all my hard drives, and remove the need for the the iSCSI server.
I have seen the same errors with iSCSI and ext4.
[2687538.144009] EXT4-fs (sdi): error count: 54
[2687538.144012] EXT4-fs (sdi): initial error at 1309736118: ext4_journal_start_sb:260
[2687538.144016] EXT4-fs (sdi): last error at 1309761117: ext4_put_super:737: inode 8194
[2774045.664009] EXT4-fs (sdi): error count: 54
[2774045.664013] EXT4-fs (sdi): initial error at 1309736118: ext4_journal_start_sb:260
[2774045.664016] EXT4-fs (sdi): last error at 1309761117: ext4_put_super:737: inode 8194
[2860553.184009] EXT4-fs (sdi): error count: 54
[2860553.184012] EXT4-fs (sdi): initial error at 1309736118: ext4_journal_start_sb:260
[2860553.184015] EXT4-fs (sdi): last error at 1309761117: ext4_put_super:737: inode 8194
Rob "CmdrTaco" Malda Resigns From Slashdot 1521
NASA Discovers 7th Closest Star 137
Sports Bars Changing Channels For Video Gamers 351
Researchers Report Spike In Boot Time Malware 132
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Submission + - Facebook Data Collection Under Fire Again (computerworld.com)
The Independent Centre for Privacy Protection (ULD), the privacy protection agency for the German state of Schleswig-Holstein, issued a news release on Friday saying Facebook builds a broad, individualized profile for people who view Facebook content on third-party websites.
Data is sent back to Facebook's servers in the U.S., which the agency alleges violates the German Telemedia Act, the German Federal Data Protection Act and the Data Protection Act of Schleswig-Holstein. The agency alleges the data is held by Facebook for two years, and wants website owners in the state to remove links to Facebook by the end of next month or possibly face a fine."
Humanoid Robot Wakes In Space, Tweets 91
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Submission + - Windows 8: estimated transfer time is no more (extremetech.com) 1
Submission + - Researchers Report Spike in Boot Time Malware (securityweek.com)
Also known as MBR (master boot record) threats, the malware infect an area of the hard disk that makes them one of the first things to be read and executed when a computer is turned on. This enables the threats to effectively dodge many security defenses.
In June, Microsoft warned Windows users about a bootkit Trojan known as Popureb, touching off discussions about whether or not infected users were better off completely re-installing Windows.
Infecting the MBR is not a new technique per se; many of the old boot sector viruses from over a decade ago did something similar, the report notes. The difference is modern MBR malware do so much more than just infecting the MBR. It certainly looks as if MBR malware is making a comeback in 2011.