Tagged Questions

3ware are SATA and SAS RAID controller cards from LSI

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6
votes
1answer
1k views

I have a 21TB array but only 16TB is visible from Windows

CONTROLLER Raid Controller: 3Ware 9650SE-24M8 Disks: 21 x 1TB RAID5 Stripe 64KB WINDOWS OS: Windows Server 2003 SP2 32x Disk: Dynamic 19557.44GB Volume: Capacity 15832.19GB I guess my array ...
6
votes
3answers
12k views

What does 3Ware's tw_cli mean by a “DEGRADED” disk vs “ECC-ERROR”?

I've got a sad RAID array on a 3ware 9650SE-16ML card. What I can't tell is if I've just suffered a double-disk failure (bummer!) or if I'm reading this wrong. The relavent output of /c0 show all ...
1
vote
1answer
1k views

3ware 9650SE: This Spare unit may replace failed drive of same interface type only

I just added a spare disk to my array: Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy ------------------------------------------------------------------------------ u0 ...
16
votes
2answers
3k views

RAID-6: better to replace two dead drives at the same time, or one at a time?

We have a 16-drive RAID-6 that has three problem drives. Two are already dead, and the third is giving SMART warnings. (Nevermind how it got in such a bad state.) Obviously we want to replace the ...
0
votes
1answer
505 views

Optimal setup for 2x 3ware 9500S-8 cards + 10 disks

I'm building out a Linux based NAS server. My hardware consists of two 3ware 9500S-8 RAID cards and 10 2TB drives. (5 per card) The 10 drives are going to be used purely for data (the OS is ...
1
vote
1answer
1k views

3Ware 9650SE is rebuilding RAID6 array with two degraded disks?

I have a RAID6 array on a 3Ware 9650SE which is degraded: tw_cli /c0/u0 show Unit UnitType Status %RCmpl %V/I/M Port Stripe Size(GB) ...
1
vote
1answer
990 views

FreeBSD: how to associate disk serial numbers to device names when using a 3ware SATA card

When using a 3ware SATA/RAID card is there a way to associate the disk serial # with the /dev/daN device? I can get serial numbers by using "smartctl -d 3ware,0 /dev/twa0 -i", but I don't know if ...
2
votes
1answer
2k views

Extending a live 3Ware RAID6 array in Linux with tw_cli

I have a Debian Linux machine with a 3Ware 9650SE RAID controller with a RAID6 array. tw_cli show this: Unit UnitType Status %RCmpl %V/I/M Port Stripe Size(GB) ...
3
votes
3answers
943 views

Disk wipe preferences

I manage a pool of systems that are loaded with software and sent to potential customers for evaluations which often land sensitive information on the drives. Before shipping them back, they typically ...
1
vote
3answers
431 views

Why can't I create a RAID 1 on my 3ware 9650SE-4LPML?

I have 4 2TB drives. I want to create a 4TB RAID 1 array. I select the 4 drives in the RAID BIOS, and try to create an array, but my only options are RAID 0, RAID 5, and RAID 10. This controller is ...
1
vote
2answers
2k views

Best option with 3ware 3DM2 when drive has bad sectors?

I have a FreeBSD server running a RAID 5 array using the 3ware hardware controller 3DM2 (user guide PDF). It uses 3 hot-swap drives + 1 spare. The last couple of months one of the drives have ...
1
vote
1answer
353 views

i2c cable for 3ware 9650se and SuperChassis 846A-R1200B

What's the appropriate cable to support i2c (red LED drive indicator, failure) with this combination and what's the best way to order it? I see 3ware supports 846TQ but not 846A from ...
0
votes
4answers
1k views

How can I increase the size of a RAID 1 array from 750GB to 1TB? 3ware

3ware 9650SE-2LP Array is 750GB volume, RAID 1. One drive is 750GB, the other is 1TB. Looking to replace the 750GB drive with a 1TB. Will the array rebuild to the max size of 1TB, or will the array ...
0
votes
1answer
200 views

recovering from a crash. data stored on a 3ware 9650SE-LP mirrored set

So I'm hoping this will be very easy because my drive that failed is not part of my mirrored set. I had my OS drive go bad but my data drive ( my 2TB mirrored set ) is still ok. I just can't access ...
0
votes
3answers
245 views

RAID controller with good linux support and cross-model compatibily

I want to put some RAID controllers in our Linux servers, for which I have a couple of requirements: Good Linux support. Not just the disk driver, but also the management and query tools, to report ...
0
votes
1answer
249 views

Older raid controllers in raid 5 vs. Jbod and SW raid

I'm in the fortunate position to have 6 Supermicro older VOD servers with the following config: Supermicro 3U case, 3xPSU Dual Xeon 3ghz P4 class cpu (5 years old.. havnt checked the exact type) 4GB ...
4
votes
1answer
2k views

Ubuntu: Monitor hardware RAID and notify upon failure?

I am using the 3ware 9650SE-2LP Raid controller for a 2-drive RAID 1 setup in some new Ubuntu 10.04 x64 servers. Is there a way for the server to send me a notification when one of the drives fails? ...
2
votes
9answers
5k views

Experience with AMCC 3ware 9650se raid cards? Ours seems dead

We have a 8-port 3ware 9650se raid card for our main disk array. We had to bring the server down for a pending power outage, and when we turned the machine back on, the raid card never started. This ...
1
vote
5answers
5k views

Disk failed part way through 3ware RAID 5 rebuild

I have a 3ware 9650SE RAID controller with a RAID 5 array containing 15 Seagate ST31000340NS disks. After noticing ECC errors in the Port 10 drive I replaced it with a spare and began a RAID rebuild. ...
0
votes
1answer
726 views

3ware raid controller splits raid array into two peices. what do do?

I have a server with a 3Ware 9650SE 8 port controller. I had an 8 drive raid 5 array with a hot spare drive as part of the array of roughly 3.87 TB in size. When I signed into the server today, I ...
3
votes
4answers
8k views

Flashing the Firmware on a 3ware 9650SE RAID controller

I've downloaded the required files to flash the firmware on my RAID controller I have also read the KB article:http://www.3ware.com/KB/article.aspx?id=10058 However it is not particularly clear - I ...
1
vote
2answers
297 views

How many disks to use for eight channel RAID controller

I have a 3ware 8 channel SAS controller and a back plane extender (also 8 channel) which can take 16 drives. I will be creating a single RAID 10 volume. I know that adding more drives has positive ...
3
votes
5answers
8k views

how do you mount and format /dev/sda to a different /dev/ name?

We have linux box running fedora. It has a small laptop hard drive running the OS and a 3ware RAID controller running 3 SATA drives RAID 5. When we boot the computer and login, I run “fdisk –l” ...