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1
vote
1answer
55 views

Limit on number of raid arrays in a HP P420i

On the spec sheet of P420i HP raid controller, it says the maximum number of logical drives is 64 with 512 mb cache or above. But what is the limit of the number of arrays one can create. For ...
0
votes
0answers
64 views

Storage Spaces Write Rate Issue

I am setting up a Windows 2012 R2 Storage Spaces array. It is setup with 24 drives, 22 of them mirrored, with 2 hot spares, in 11 columns. I am useing a LSI 9207-8e HBA card with the latest IT ...
2
votes
1answer
202 views

Arranging a raidz3 ZFS vdev to tolerate entire JBOD failures?

Let's say I'm going to build a very large 1PB zpool. I'll have a head unit with the HBAs inside of it (maybe 4 port LSI SAS cards) and I will have perhaps 7 45-drive JBODs attached to the head unit. ...
1
vote
1answer
394 views

DELL FS12-SC PERC 6/i replacement with JBOD support? [closed]

I have 3 DELL FS12-SC servers with a bunch of 3TB drives (issue number 1, the perc 6/i doesn't appear to support 3TB drives). I'm setting up a ceph cluster and need to run the drives in JBOD mode. The ...
0
votes
1answer
317 views

JBOD with PERC H810

I'm wondering if anybody has ever used Dell storage products like the MD3220 array in a JBOD configuration. From what I can tell only perc h810 will work for external JBOD but that is not terribly ...
0
votes
1answer
59 views

Use 'normal' disks in a Dell Powervault? [closed]

I want to build a two node rack, with one node being high compute intensity and one node used to store the results. I am not concerned with data integrity. When I look at the cost for 'nearline' ...
1
vote
1answer
137 views

9211-8i HBA (IT mode) with Supermicro expander

I have managed to get things to a point that I see all my drives listed with "multipath -l". Now the question is how to add them to a ZFS zpool? All attempts at using dm* naming or /dev/mapper names ...
0
votes
2answers
92 views

A backup system alone: tower or rack chasis?

We'll install a backup system in following possible configurations: two servers in cluster with a SAS JBOD attached to them one server with the same JBOD in back However I'm thinking if really is ...
1
vote
0answers
65 views

3ware 9500S-4LP raid-1 rebuild failed

After replacment of 2 failed drives on 3ware card i got this: Ctl Model (V)Ports Drives Units NotOpt RRate VRate BBU ...
-4
votes
1answer
36 views

Good way to get HDD in a large logical disk. *7 Discs of different sizes [closed]

Basically I would like to have one large logical disk. Data security is important, but not critially. Typically I would like something like 1st prize: Raid 5 2nd prize: Loosing all data on failed ...
1
vote
1answer
161 views

HP Smart Array accessing a physical drive when the controller believes it's failing

Is it possible to somehow access the raw block device hiding behind a HP SmartArray controller? I have a JBOD disk connected through a SmartArray, and the second the controller thinks it's failing it ...
1
vote
3answers
113 views

Simple way to extend server disk capacities

What's the least cumbersome way to extend existing server's storage capabilities? I have a SuperMicro custom server and a Dell PowerEdge 2950 and I would like to extend their storage with budget hard ...
27
votes
2answers
6k views

Why are enterprise SAS disk enclosures seemingly so expensive?

I will begin by stating that I do not believe this is a duplicate of Why is business-class storage so expensive?. My question is specifically about SAS drive enclosures, and justifying their expense. ...
0
votes
0answers
155 views

Intel 1200BTS only sees 15 out of 20 drives on Areca card in JBOD?

I am setting up a NAS device using an Intel 1200 BTSR motherboard and an Areca 24 port SATA/SAS card. Booting up into the Areca card's BIOS, I'm able to see all 20 drives that I have configured in ...
3
votes
1answer
281 views

Can I cascade 2 HP MSA60 enclosures and create a RAID1+0 array over all disks

I have a DL380 G5 (p411 SmartArray Controller) with a single loaded MSA60 (12x2TB SATA)and am purchasing a 2nd to cascaded as illustrated above. If I do this with identical disks (another 12x2TB SATA) ...
0
votes
2answers
295 views

Preventing h/w RAID cards from dropping slow JBOD disks

I'm considering buying a used SAS h/w RAID card for externally attaching HDDs to an HP ProLiant I'm setting up. However, I only require RAID functionality on some of the drives. Theoretically it ...
1
vote
2answers
359 views

Strategies for detecting corruption in Greyhole pools [closed]

Are there any good strategies for proactively detecting data corruption in a Greyhole pool. Suppose the following chain of events happens. c:\> copy swiss_bank_account.txt ...
0
votes
3answers
2k views

3WARE 9650-4LPML JBOD DISK to RAID - 1 Mirror Migration How To?

It is possible to migrate a single disk, to Raid 1 as per Table 10 in the User Guide Page 122: http://www.3ware.com/support/UserDocs/3ware9650SE-UsrGuide.pdf I am trying to find what the best method ...
4
votes
4answers
2k views

SAS Expanders for DIY JBOD Arrays

I am researching making a DIY SAS array much like the Dell MD1000. My understanding is that these devices do not contain a RAID controller, instead they present all the drives on in SAS domain to the ...
2
votes
4answers
266 views

Why should I choose an Enterprise Storage Vendor?

I have been basically psyched out by some of the sales consultants from enterprise vendors such as EMC and NetApp. We have a new requirement to store around 30 TB of unstructured data, and around ...
2
votes
4answers
6k views

Hadoop JBOD disk configuration on HP Smart Array 410/i disk controller

I'm in a evaluation phase of some hw that could be used for setting up a hadoop cluster. This hw is refurbished (hp G6 servers w/ Smart Array 410/i controller) and probably we should/must use it... we ...
1
vote
3answers
2k views

btrfs: can i create a btrfs file system with data as jbod and metadata mirrored

I am trying to build a server that will be my NAS/Media server as well a the XBMC front end. I am planning on using Ubuntu with btrfs for the NAS part of it. The current setup consists of 1TB hdd ...
0
votes
2answers
703 views

Rosewill RSV-S5 and it's transferespeeds

I have just bought a Rosewill RSV-S5, I have installed 5x1,5Tb Western Digital Green disks in it. After that have I created a Raid5 on them all with the software that followed with the hardware. Not ...
0
votes
1answer
131 views

Rosewill RSV-S5 and WIndows Server 2008 RC2 Software Raid

I have just bought a Rosewill RSV-S5 http://www.newegg.com/Product/Product.aspx?Item=N82E16816132015 because i want to move the hardisks out of my case. I have 5 disks now in a software raid 5, made ...
0
votes
3answers
268 views

Is it possible (and how if it is) dump two concatenaded disks in a new disk using DD?

I have a Lacie enclosure that has a setup with 2 500gb disks configured as 1 drive of 1TB, the only partition created for the whole drive is HFS+ journaled, but the controller in the enclosure is gone ...
2
votes
2answers
1k views

Can I get redundancy with a JBOD storage subsystem

I have a Promise Technology J610S. This is a JBOD subsystem. Is it possible for me to buy a SAS hardware RAID controller and provide some type of redundancy for these drives? I am unsure whether I ...
3
votes
3answers
4k views

LVM spanning over multiple disks: What disk is a file on? Can I lose a drive without total loss?

I have three 990GB partitions over three drives in my server. Using LVM, I can create one ~3TB partition for file storage. 1) How does the system determine what partition to use first? 2) Can I find ...