1.5TB Seagate drives

[Chrisjsherwood]

Have now taken delivery of n7700 plus 7 1.5TB Seagate HD's, am creating an array using 5 of the drives and leaving the other 2 as spares.

Regards
Chris

[redclawkefar]

btw... out of curiousity, how much is the n7700 with all them drives. i'm still waiting for the n8800 which i hope can take the 1.5 hdds.

[Funkstar]

Thecus N7700 - £869.89
Seagate Barracuda 1.5TB - £140.87

Making a total of £1,855.98 including the VAT.

[Chrisjsherwood]

Thecus N7700 - £869.89
Seagate Barracuda 1.5TB - £140.87

Making a total of £1,855.98 including the VAT.

There is a problem with the 1.5TB drives in the N7700. tried several times, but get degraded Raid(5).

I paid £99.96 each plus vat for the drives from Lambda-Tek this week, and they had stock.

Regards Chris

[Funkstar]

£99.96 is pretty damned good.

Hopefully Scan will have dropped their price by the time I come to get another one.

[redclawkefar]

...why do i get this sinkng feeling that it'll be a little longer until the n7700's get here and then even longer for the n8800's......... U.S. suppliers seem to be slow....

[RainerStratmann]

Taking delivery of N7700 tomorrow, was going to order the Seagate 1.5TB drives, but now worried.

Have you had any response from Thecus folk?

Has anybody else tried this combo N7700 with 7x1.5TB ST31500341AS

I have sent my N7700 back to my reseller!!
And he was sending the N7700 with the 1,5 TB HDD´s
back to Thecus Germany. Thecus accept the return from my reseller
because they have no solution this time.
You should use the 1 TB HDD !
Thecus Germany told my reseller to resolve this problem with 1,5 TB HDD´s when the 1,5 TB HDD - ServerEdition will be appear! (NS...Edition e.g.)

That was the reason for my return the N7700

Best regards

Rainer

[Chrisjsherwood]

Thanks for your help Rainer.

Regards Chris

[patrickc63]

Well, the 1,5 TB seem's ok with the 5200pro , from reading this discussion, any new problem to say because seagate had to do an update to their disk?

May be, chris, if you did get the update your 7700 is ok now?

regards

[Chrisjsherwood]

See my posts here Patrick

http://forums.hexus.net/thecus-care-...b-seagate.html

[deanpm]

Seagate states that the 1.5TB drives are Desktop RAID. this means they should not be used in more than a RAID 0 or ! config with maximum of 2 drives. These ARE not enterprise drives and should NOT be used in ANY raid configuration. on top of that firmware versions SD15-SD19 suffer from vibration issues and the drives suddenly freezing, this is a common and well documented problem and there is a firmware fix from seagate depending what drive you have.
In the meantime i would NOT put these drives in ANY enclouse other than a single external drive caddy as these arent designed for multiple RAID use.

[patrickc63]

Was just wondering, this is for rainer,chris,mike and all who have the 5200pro running with 1.5 tb seagate for quite a while now...

Do you have any problem, like freeze or anything... did you have to do an update also on the hd...

On raid 5 , arround 6 Tb left am I right?

Anyway thanks in advance for any answers and for sharing..;

regards

[Funkstar]

On raid 5 , arround 6 Tb left am I right?

Quite a bit less actually, around 5.25TB.

Remember drive manufacturers count data differently to the OS, you also have the overhead of the file system on the disks.

[Chrisjsherwood]

I have 7x1.5TB drives fitted to N7700 and the indicated total capacity is 8372.3GB, stripe size=128KB, and File system Ext3.

There have been no freezes or hangs, the only disturbing thing has been status warning.

This is covered by Yvon's posts elsewhere.

Regards Chris

[phildog33]

Chris,

Isnt there an issue with >8TBs on the N7700 and Ext3.

I was worried that 7 seagates 1.5tbs would be capped at exactly 8TBs, like yvonne was saying

but its not true????

We get 8.37 TB with stripe 128??
Cool.. I thought Yvonne was saying 8 capped

also.. 64kb vs 128kb stripe??

p

[Chrisjsherwood]

Chris,

Isnt there an issue with >8TBs on the N7700 and Ext3.

I was worried that 7 seagates 1.5tbs would be capped at exactly 8TBs, like yvonne was saying

but its not true????

We get 8.37 TB with stripe 128??
Cool.. I thought Yvonne was saying 8 capped

also.. 64kb vs 128kb stripe??

p

I have upgraded the firmware in the N7700 to 2.01.06, The Total Capacity reported by the box is 8372.3GB and the Data Capacity is 7703.6GB. Both figures are as reported for a new raid5 without any added folders.

Ref your query Stripe sizes see here http://www.tomshardware.com/reviews/...TS,1735-4.html

I have picked 128KB as I store a lot of photographs , and AV stuff, most file sizes therefore are large.

I have not, as yet felt happy about entrusting my files to this system, as there is uncertainty about the combination of N7700 and 1.5TB hd's. I await with interest the resolution between Thecus and Seagate.

In the meantime I am trying out combinations of settings for the N7700.
I am in process of seeing what size the raid is with one less hd, will report back.

Best regards Chris