10 More Discussions You Might Find Interesting
1. SCO
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2. Debian
I am installing a Debian Server on a:
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3. AIX
Hello,
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when I type lspv ; I used to see 3 physical disks ( two local disks and one raid 5 disk )
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4. Linux
I just built a home computer with 3TB hard drives I wanted to set up in a RAID 5 and load Ubuntu server onto it.
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5. Hardware
Hi guys.
if we want to use SSD drives on a database server, can we use RAID 0 configuration because of their reliability? (3 Replies)
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6. Hardware
Hi All
I have a Sun T2000 server. Couple of years ago I had configured and mirrored the boot drive with an other drive using hardware RAID 1 using raidctl command.
Following is the hardware RAID output.
root@oracledatabaseserver / $ raidctl
RAID Volume RAID RAID Disk... (0 Replies)
Discussion started by: Tirmazi
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7. UNIX for Dummies Questions & Answers
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8. Red Hat
I am planning on building a fedora box with raid controller (database server).
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9. Filesystems, Disks and Memory
Hi,
I have a server that I am adding a RAID that we purchased to. The server works fine. It is running Fedora 7 and is a Dell Precision 690.
When the RAID is attached, it boots up and says the following:
Controller Bus #00, Device#1F, Function#02: 00 Ports
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Discussion started by: user23
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10. Filesystems, Disks and Memory
Help, if possible.
In SCO Open Server with installation of two-channel RAID controller the following happens: on the channel 0 disk array is seen by an operational system, and on the channel 1 array is not seen (simultaneously). That is the operational system can not simultaneously use more than... (1 Reply)
Discussion started by: pko60
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TWS(4) BSD Kernel Interfaces Manual TWS(4)
NAME
tws -- 3ware 9750 SATA+SAS 6Gb/s RAID controller card driver
SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file:
device scbus
device tws
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
tws_load="YES"
DESCRIPTION
The tws driver provides support for LSI's 3ware 9750 SATA+SAS 6Gb/s RAID controller cards.
These controllers feature the LSISAS2108 6Gb/s SAS RAID-on-Chip (ROC) and are available in 4- and 8-port configurations, supports RAID levels
0, 1, 5, 6, 10, 50 and single disk, with 96 SATA and/or SAS hard drives and SSDs.
For further hardware information, see http://www.lsi.com/.
HARDWARE
The tws driver supports the following SATA/SAS RAID controller:
o LSI's 3ware SAS 9750 series
LOADER TUNABLES
Tunables can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).
hw.tws.cam_depth The maximum queued CAM SIM requests for one controller. The default value is 256.
hw.tws.enable_msi This tunable enables MSI support on the controller if set to a non-zero value. The default value is 0.
hw.tws.queue_depth The maximum queued requests for one controller.
hw.tws.use_32bit_sgls Limit the driver to use only 32-bit SG elements regardless whether the operating system is running in 64-bit mode.
The default value is 0.
FILES
/dev/da? array/logical disk interface
/dev/tws? management interface
DIAGNOSTICS
Whenever the driver encounters a command failure, it prints out an error code in the format: "ERROR: (<error source>: <error code>):", fol-
lowed by a text description of the error. There are other error messages and warnings that the driver prints out, depending on the kinds of
errors that it encounters. If the driver is compiled with TWS_DEBUG defined, it prints out a whole bunch of debug messages.
SEE ALSO
da(4), scsi(4)
AUTHORS
The tws driver was written by Manjunath Ranganathaiah for LSI and this manual page was written by Xin LI <delphij@FreeBSD.org> for iXsystems,
Inc.
BSD
October 4, 2011 BSD
