forum.excito.org

Hello,

My idea is a RAID1 system with 2x 1Tbyte (nominal 1 Tbyte)

1. Can I do this in the near future with Bubba 2 with 2 external hdd's configured in RAID1 with software on bubba 2 to realise this?
- Can I move the home / storage / mail folders to these 2 hdd's?

- Is de bubba two powerfull enough to do this task?

2. An exteranal NAS with RAID1 connected via eSATA or RJ45.
- If the controller should breakdown can I still see my data?

- When will the Raid be ready for the bubba2?
- Can someone tell me what the best option is?

I still want to be the bubba in control and the folders placed to the NAS.

I think i want to have automatic backups to the bubba two internal drive.

Please advice.

Puma

Can excito tell something about the status of RAID support (raid 1)

Puma

Basically we initially support multiple disks using LVM, which is described in a good way at http://en.wikipedia.org/wiki/Logical_Vo ... er_(Linux). Thus there will be functionality matching both raid0 and raid1.

/Carl

Carl,

Thank you for your quick reply.
I'm glad that you will support raid soon.

But is the bubba 2 fast enough for this task?

I like the idea of 2 external drives raid1.

I think it is better to let bubba2 control raid is better than an external NAS.

Is this a good thought? or don't you agree?

Puma

Hi,

I recieved my bubba two (1TB) and bubba storage (1TB) today and started fiddling with raid-1 determined to get it running. The array is not yet rebuilt so I don't know what performance is going to be like once it is, but it currently works and looks very promising. I have documented my steps in my blog at: http://patrik.cqure.net/wordpress/2009/ ... -raid-one/

/Patrik

Hello,

Is there any progress on the raid support??

Or is the best solution to get an external device with raid1??

Like: http://forum.excito.net/viewtopic.php?t ... light=raid

or http://patrik.cqure.net/wordpress/2009/ ... -raid-one/

I won't like less power as mentioned by patrik

And has is this the best solution?


Puma

Hi Puma,

Unfortunately I was stupid enough to not measure any performance until I had actually set up the raid-1, so I don't have anything to compare it to. I have made some minor performance tunings since and have made some "not that scientific" performance measurements. I am seeing an average of 4.3MB/sec (34mbit) when copying files over the network, and I am sure the network is not the bottle neck as other systems on the same consumer gigabit switch have much better throughput. I have tried to change most of the settings on the disks (including DMA) without success.

For me the the performance was a pain moving 500gigs of data onto the drives. But now when it's all there and my Internet connection is limited to 50mbit it's OK. So far, It's the quietest NAS I have had, without the need to modify it which was my first priority. When I upgrade my internet connection I will need to look for a new solution.

Here are some stats from hdparm -Tt on both the raw disk /dev/sda and the raid device /dev/md0. I would be interested to know what average throughputs your seeing without the raid-1!

/dev/sda:
Timing cached reads: 228 MB in 2.01 seconds = 113.53 MB/sec
Timing buffered disk reads: 172 MB in 3.02 seconds = 56.92 MB/sec

/dev/md0:
Timing cached reads: 228 MB in 2.01 seconds = 113.17 MB/sec
Timing buffered disk reads: 130 MB in 3.02 seconds = 43.00 MB/sec

/Patrik

Hello everyone,

Can someone tell me about the status of RAID support?

My idea is a RAID1 system with 2x 1Tbyte (nominal 1 Tbyte)

Can I do this in the near future with Bubba 2 with 2 external hdd's (ESATA) configured in RAID1 with software on bubba 2 to realise this?

- Can I move the home / storage / mail folders to these 2 hdd's?

- Is de bubba two powerfull enough to do this task?

Or is the best solution something like the CalDigit VR ???

see: http://www.caldigit.com/CalDigit_VR/cal ... atile.html

Puma

Hello,

Nobody???



Puma