Tagged Questions
0
votes
1answer
33 views
Error messages in x3550 related to hard drives not detected at bios level
I have an IBM x3550 when I start it I get the following messages:
no logical drives found
no int 13 drives to support
bios not installed
I go into diagnostics and I noticed that SCSI ...
0
votes
2answers
95 views
Accessing data on SAS drives if server fails
If my server goes down, how can i access the data on the SAS drives?
I don't have another server to plug them into, and even then connecting the drive to a different controller (while keeping the ...
0
votes
0answers
64 views
How to increase hidden/used space on an SAS hard drive
My server is Windows 2008 R2 Standard Server.
I have a SAS drive where all my website files are with the following properties:
NTFS File System
Allow files on this drive to have contents indexed in ...
4
votes
1answer
2k views
Mixing dual and single port SAS disks
I have a HP DL380 G5 with 8x146GB single port SAS SSF disks (DG146ABAB4).
A couple of them have failed and I can't find any new single port disks anymore. They all seem to be dual port. I'm wondering ...
1
vote
1answer
60 views
Does the order of SAS drive matter when installing old drives?
I have an old IBM server with 12 hard drive bays, 4 of which are used (SAS 72GB drives), and configured in a RAID 1 array. The server will be sent away for repairs, when it comes back, do I need to ...
3
votes
3answers
183 views
HP SAS hdd in non-HP server
I wonder if I could re-use some HP SAS drive in a non-HP server.
Description:
146GB 2.5" Serial Attached SCSI (SAS) SFF
3G Single Port Hot-Plug 10K HDD
Option Part# 431958-B21
Spare Part# 432320-001
...
0
votes
2answers
414 views
Rule of thumb: SATA for storage & serving static content, SSD/SAS for databases?
The question says it all. But, is it true? Can someone explain what's the differentiating factor here (how one type of disk is better than another for a specific purpose)?
(FYI, I've tried searching, ...
46
votes
8answers
3k views
How can a single disk in a hardware SATA RAID-10 array bring the entire array to a screeching halt?
Prelude:
I'm a code-monkey that's increasingly taken on SysAdmin duties for my small company. My code is our product, and increasingly we provide the same app as SaaS.
About 18 months ago I moved ...
2
votes
2answers
478 views
SAS drive to SAS/SATA backplane then SATA cables to SAS/SATA RAID card?
I just got a Supermicro chasis:
http://www.newegg.com/Product/Product.aspx?Item=N82E16816101241
That has a backplane that supports SAS and SATA drives but the backplane has SATA ports to be ...
4
votes
6answers
2k views
Use of 2.5" Laptop Drives in a Server?
We're acquiring several 1U servers with (8) 2.5" drive slots. Although we can use either SATA or SAS, there is a large price variance as soon as you order 16 or 24 of these drives, so we are looking ...
3
votes
4answers
5k views
SAS or SATA for 3 TB drives?
We are looking to purchase new 3 TB enterprise-grade drives and can buy either SAS or SATA models.
AFAIK, SAS generally gives better performance than SATA, but searching for benchmarks I found ...
1
vote
2answers
171 views
When ordering SAS replacement drive, does the hot swappable enclosure matter?
I have a dell PowerEdge and need to replace one of the SAS drives in it. I noticed the supplier I order from does not sell a specific "DELL" SAS replacement drive, but they have what appear to be ...
2
votes
2answers
152 views
Why is my server's SAS drive 147 GB when most are 146 GB or does that matter?
I need to replace a failed drive in my Dell server's RAID 1 configuration.
I pulled the drive and it's a Hitachi Ultrastar 15000rpm / SAS 147 GB.
The supplier I usually order from only has SAS 15k ...
1
vote
3answers
460 views
SAS Drives on VMWare ESXi Installable 4.0 u2 Too Slow?
We are running a Dell PowerEdge T710 with a PERC H200 RAID controller and two mirrored SAS drives.
We just patched to Update 2 because our SAS drives were extremely slow and it mentioned somewhere ...
7
votes
3answers
20k views
SAS vs. Nearline/MDL SAS - What is the difference?
As subject I guess, looking at SAN's and most vendors offer 10k or 15k "proper" SAS drives, many also offer 7.2k MDL/Nearline SAS drives.
Does anyone have an authoritative explanation of the ...
1
vote
2answers
101 views
spontaneous hard disk password
I had an HP proliant server go down recently. All of the sudden the sas controller (e200i) would not see any of the physical disks. New disks were detected just fine. I thought it was odd that all ...
1
vote
1answer
622 views
External mini SAS to external mini SAS (x4 vs x8)?
I'm ordering an Enhance Tec E8 external harddrive enclosure with with a Mini SAS 8088 connector. I plan to use 8 drives in a RAID 5. The RAID Controller I'm looking at says it has 2 x4/x8 hybrid ...
5
votes
4answers
8k views
Performance differences between 2.5“ vs. 3.5” SAS
What real performance gains/losses are there on 2.5" vs. 3.5" 15k SAS drives. Are folks really seeing seek differences, &c?
39
votes
3answers
43k views
What are the merits of SAS vs SATA drives?
What are the merits of buying SAS drives over SATA drives, or vice versa?
