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View Full Version : PC buying advice please............


subair37
21st January 2011, 08:14
Hi

I am about buy this pc ,Please tell me how good this is for encoding video ,also can you explain to me if i replace 1TB hard drive to 2 500GB hard drive with Raid 1 what is the advantage of doing it ? Is it any good for video encoding also please explain to me what is Raid 1 .

Please check this link to find out the pc i am buying.


http://cgi.ebay.co.uk/CUSTOM-BUILT-CORE-i7-950-DESKTOP-/220727396853?pt=UK_Computing_DesktopPCs&hash=item336460c9f5#shId

http://cgi.ebay.co.uk/INTEL-I7-950-1TB-6GB-RAM-ATI-4350-DESKTOP-PC-WINDOWS-7-/400168854903?pt=UK_Computing_DesktopPCs&hash=item5d2bec2577

please compare these tow pc s and let me know please

Is raid 0 any better than raid 1 ?


I wanna use this pc for CCE encoding and x264 encoding Megui

Please help....................

LoRd_MuldeR
21st January 2011, 13:19
if i replace 1TB hard drive to 2 500GB hard drive with Raid 1 what is the advantage of doing it?

Is it any good for video encoding also please explain to me what is Raid 1 .

With a RAID-1 ("mirroring") you would effectively have 500 GB of space available from the two 500 GB drive.

Advantage: If one of the HDD fails, you still have a copy of all the data on the remaining HDD, so no data will be lost as long as only a single HDD fails.

Still this can't replace a "true" Backup. It doesn't protect against accidentally overwriting a file, for example ;)


Is raid 0 any better than raid 1 ?

With RAID-0 ("striping") you have the "full" capacity available, e.g. 1000 GB from two 500 GB drives.

Also, as the data is distributed among both drives and both drives read/write parallel, the read and write speeds will be (approximately) 2x compared to a single HDD.

However there's a big disadvantage: If only one HDD in the RAID-0 fails, then all data is lost! Even if the remaining HDD still is working...


The ultimate solution would be a RAID-10 (RAID-1 and RAID-0 combined, needs 4 HDD's) or a RAID-5. However IMHO you don't need a RAID. For video processing RAID only helps if you are bottle-necked by HDD throughput (RAID-0) or if you need the extra redundancy (RAID-1). Most likely you are bottle-necked by CPU, so you better save the money for RAID and get a faster CPU instead...

subair37
21st January 2011, 13:37
With a RAID-1 ("mirroring") you would effectively have 500 GB of space available from the two 500 GB drive.

Advantage: If one of the HDD fails, you still have a copy of all the data on the remaining HDD, so no data will be lost as long as only a single HDD fails.

Still this can't replace a "true" Backup. It doesn't protect against accidentally overwriting a file, for example ;)




With RAID-0 ("striping") you have the "full" capacity available, e.g. 1000 GB from two 500 GB drives.

Also, as the data is distributed among both drives and both drives read/write parallel, the read and write speeds will be (approximately) 2x compared to a single HDD.

However there's a big disadvantage: If only one HDD in the RAID-0 fails, then all data is lost! Even if the remaining HDD still is working...


The ultimate solution would be a RAID-10 (RAID-1 and RAID-0 combined, needs 4 HDD's) or a RAID-5. However IMHO you don't need a RAID. For video processing RAID only helps if you are bottle-necked by HDD throughput (RAID-0) or if you need the extra redundancy (RAID-1). Most likely you are bottle-necked by CPU, so you better save the money for RAID and get a faster CPU instead...

so in that case i use that money and buy i7 950

the link i provided above so wii it be any good for video encoding ..........