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Post by bill321 on Dec 21, 2007 20:32:07 GMT 7
Bill - what happens if a HDD in your main N5200 fails? I suppose you have to replace it and the restore from your backup N5200. Or are you somehow running both N5200s side-by-side so that if one fails then the other continues on? The devices that are accessing the N5200 are using UNC paths - so if the Server1 has a problem, I just rename it to something temporary (Server3), rename Server2 (the backup N5200) to Server1, and I am back online. Then replace the broken hard drive, and run a backup to what is now the new backup server. Did this once when I upgraded hard drives. Of course, there is a window of time when the first server is down during which there is no effective recovery possible. Critical data remains protected by periodic backup to DVD-R and offsite storage. Bill
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Post by singaporeguy on Jan 17, 2008 9:19:28 GMT 7
Build my N5200pro with 5 X Western Digital WD7500AAKS 750GB drives running RAID 5 Now that my Thecus is about 90% full with all my video files, I am pretty scared to lose my data and 6 months of work. Considering getting a 4-bay non-raid enclosure (to attach to my pc) to backup my files from the Thecus. Once I do that, I wonder if it is still necessary to keep the Thecus in RAID5? What about re-configuring it to JBOD so I can have more capacity since I already have another backup of the data on the other enclosure? Since it is for home (video/music streaming) and not office, I won't mind the downtime on either of the device if a disk fails and I have to replace the disk, reformat and copy the data from the other device. Question for bill: If you have 2 storage device both running RAID 0 to back up each other, then if any 1 HD in each device breaks down during the same period (before you can do the restore), then ths risk of losing all the data is high. If you run them in JBOD, then you the risk is slightly lower as you only lose data on 1 HD if the same disk# (e.g. disk#3) fails on both devices during the same period. The cons is that JBOD is slightly slower than RAID0 and slight more inconvenient as you have 5 mount points instead of 1.
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Post by stumsd on Feb 7, 2008 19:55:33 GMT 7
Hi, Its my first post here and i have chosen raid 10 as my best solution as i use the machine PURELY as an on site backup drive. My problem now, is how do i backup my new backup?
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Post by edgaruebel on Feb 14, 2008 20:06:48 GMT 7
Running raid 6.
Just because I've read so many posts with raid 5 + hotspare:
Does this make sense? I mean than you can directly stick to Raid 6 which has reliability âdvantages during the rebuild process after one HD of your RAID 5 fails?!
Or did I missed something?
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Post by Georg Eschenbach on Mar 19, 2008 20:58:40 GMT 7
Just for statistics:
N5200Bpro 5x Seagte ..NS 1TB Raid 6
Best wishes
George
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Post by zoubidou on Apr 19, 2008 23:42:28 GMT 7
I am usind 5200BR PRO running 2.00.4
5 hitachi deskstar 7K1000 32MB RAID 5
I figured that RAID 6 is a lot slower than RAID 5 due to the additional processor overhead for the parity calculation.
I ruther have a 6 disk sitting somewhere as a spare and use if necessary.
have fun
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Post by unclegit on May 4, 2008 3:30:26 GMT 7
Why should I use RAID 5 on 4 hard disks with an spare drive, when I can have RAID 6 with nearly the same capacity and the ability that two drives can crush without data loss? regards Write speeds - for heavy write apps raid 5 will be faster than raid 6 - but as you correctly point out at the expense of that window of exposure. I'm a DBA so I spend a lot of my time pondering raid levels and the trade offs between them - Raid 10 for everything is the correct answer and if I can't have raid 10 I'd like raid 1+0 or 0+1;)
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Post by trazom on Jul 3, 2008 23:43:26 GMT 7
Hi
I had my first 5200 at RAID 6 - now I bought a second one and put both to RAID 5.
RAID 6 was sometimes very slow in reading and especially copying data - also when I had to stream data it was not flawless.
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Post by fruitflier on Jul 31, 2008 9:06:07 GMT 7
Raid5. 3X 1TB WD black drives. Will migrate to 5 drive RAID5 in case it is full.
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Post by tankslappa on Aug 12, 2008 5:21:40 GMT 7
5... All in the sig ;D
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Post by aphasia on Aug 25, 2008 4:50:17 GMT 7
howdy all
i'm using a raid5 array
-Thecus N5200BR -Firmware 2.00.08 -RAID5 -Seagate (ST3750640AS) 750GB x 3
cheers.
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Post by wowposter on Oct 4, 2008 13:19:00 GMT 7
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Post by spiceygas on Dec 15, 2008 4:12:43 GMT 7
5200 BR Pro v2.00.14 5x 1.5 TB Seagate 7200.11 (CC1J) Raid 5
5.5815 TB total usable space.
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Post by lighttraveller on Jan 14, 2009 5:38:56 GMT 7
Running a 5200 in RAID 1, with 1TB (2x500, mirrored, hotspare).
I started with RAID 5, but found that my users' CADD applications were bogging down noticeably. (Lots of network R/W from the workstations, and with big files.) Projects that included a lot of field survey data, in particular, became a real problem. This had never happened when that data was just stored on the Win2000 server.
I figured I may as well try a different RAID config before declaring the device unsuited for our uses, and level 1 seemed to clear it right up.
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flynn
Junior Member
Posts: 88
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Post by flynn on Jan 19, 2009 2:22:45 GMT 7
RAID 5. 3 x Seagate ES.2 1TB drives. 2.00.14.
Don't have a hot spare... I figure I don't need one as long as I can live with the downtime while I order one when needed (and potentially order a bigger drive to expand later).
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