Questions tagged [controller]
The controller tag has no usage guidance.
96
questions
14
votes
7
answers
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What is a (raid-controller-) BBU for?
I am wondering what's the purpose of a BBU. My first understanding was, that it enables the cache to write the data to the disc during a power failure. But some specifications say that a BBU can hold ...
- 389
12
votes
1
answer
330
views
ssd firmware, linux: updating large batch of drives
I was recently hit with a fatal firmware bug that affected dozens of Crucial SSDs deployed in my datacenter. Many of the affected machines use LSI or other proprietary SAS controllers, which Crucial's ...
- 161
6
votes
2
answers
32k
views
Verifying if a DC is a RODC
I'm in a situation where I'm trying to help out a friend who has little knowledge of his system. He is trying to install a program onto his domain controller and it gives an error stating that it ...
- 61
5
votes
2
answers
3k
views
Nearline SAS on SATA controllers
I know that SAS drives cannot operate on a SATA controller.
I know that SATA drives can operate on a SAS controller.
But can Near-Line SAS drives, being SATA drives with a SAS controller, be used on
...
5
votes
1
answer
30k
views
Smart Array P400 battery failure
The P400 Smart Array controller in my HP DL380G5 is indicating:
Battery Status: Failed, Replace Battery 1
in the System Management Homepage. Also the IML indicates:
POST Error: 1794-Drive Array - ...
- 151
5
votes
4
answers
24k
views
Setting up a Secondary DHCP Server, for failover [duplicate]
Possible Duplicate:
Can I have multiple DHCP servers on one network?
Current Environment:
Windows Server 2003 (Primary Domain Controller)
Primary DHCP
Active Directory
Print Server
Exchange 2003
...
- 285
4
votes
2
answers
10k
views
How does a SAN architecture work and more importantly scale?
I'm trying to understand some SAN infrastructure and I was hoping some of you with more experience than me could help me understand scaling with a SAN.
Imagine that you have some computer servers ...
- 680
4
votes
3
answers
3k
views
Difference between FBWC capacities?
When buying a FBWC storage controller such as HP's P420, you can choose either a 512MB, 1G, or 2G capacity. What differences do these capacity sizes provide? Is there a metric I can use to choose ...
- 245
4
votes
1
answer
52k
views
Recovery from i8042 no controller found during boot?
I have a set of identical hardware, Dell R210s. To replicate their configuration, I use a method to image /dev/sda from a working machine, and then apply that image to a new machine. It has been ...
- 469
4
votes
1
answer
2k
views
Does any USB controller card exist that fully offloads I/O from the host CPU?
In the hard drive controller card market - the higher-end (LSI, 3Ware) cards have their own on-board CPU and RAM, and take care of interacting with the hard drive, only notifying the system's CPU ...
- 41
3
votes
1
answer
10k
views
Configuring Cisco AIR-CAP-2602i as the only WLAN AP on the network
I apologise in advance I'm about half way through CCNA so I may be using incorrect terminology.
I've been tasked with putting in a new network at work, topology as follows:
Router Cisco 887VA-M-K9
|
...
- 37
3
votes
1
answer
809
views
Monitor the Garbage Collector of an SSD
The SSD controller triggers the garbage collection routines on a specific ship or block when a certain threshold of either invalid pages or written pages is met, based on the GC policy (my guess is ...
- 273
3
votes
1
answer
456
views
Windows Server 2012r2 virtualized domain controller
My work environment contain a single forest with two domains DomainA and DomainB.
DomainA contain the following:
DC01 holds all FSMO roles for the domain and forest, Global catalog and is forest ...
- 35
3
votes
2
answers
16k
views
HP SmartArray 410i controller slow?
Have just had a new HP DL380 G6 server set up.
This has a SmartArray P410i controller and seven 2.5" 146Gb SAS 10k RPM disks, configured as three RAID1 arrays and a floating hot spare.
Problem: I ...
- 229
3
votes
0
answers
313
views
Which USB controller is device plugged into on ESXi host
I need to pass through a USB controller (not just the USB device) to a guest on an ESXi 6.7 host. Is there a way (without trial and error) to determine which controller a device is plugged into?
So ...
- 1,771
3
votes
1
answer
565
views
HP DL380 G7 RAID controller detecting bays incorrectly - port or mobo?
I've been passed a DL380 G7 which appears to work fine (all usual checks come back OK, Linux boots OK, LV creation is OK and disk access is OK) -- except the left hand four bays connected to port 1 of ...
- 398
2
votes
2
answers
6k
views
create second samba4 active directory domain controller for backup
I built up a samba4 active directory domain controller on ubuntu 14.04 and everything is working fine. The Windows clients can log in and do stuff. So far so good.
However, in case of emergency, I ...
- 21
2
votes
1
answer
253
views
Software Based RAID? Via OS or Controller?
So, I just discovered that the RAID controller within my Dell Precision 470 is software based. I never recognized until now that Adaptec CERC stood for "Cost Effective Raid Controller"... amazing.
...
- 340
2
votes
3
answers
519
views
Win2003 Domain Controller Cable Modem setup
I'm a programmer a little rusty on my networking / server skills. Our company decided to move so I've had to put aside C# and Java for a bit in order to get them up and running. So at our new location ...
- 153
2
votes
2
answers
6k
views
What is the SCSI RAID channels?
What is the SCSI RAID channels? I.e. what is the difference between, say, 1-channel RAID controller and 2-channel RAID controller?
Is it for data throughput, number of RAID arrays I can create on ...
- 347
2
votes
1
answer
1k
views
Can I connect HP Ultrium 1760 drive to LSI Logic SAS 3041E controller using the cable on the picture
I want to connect HP StorageWorks LTO-4 Ultrium 1760 tape drive to LSI SAS 3041E controller using the cable on the photo. The cable is advertised as 0.7M Mini SFF-8482 to SAS 29P SATA . Or an adapter ...
- 278
2
votes
1
answer
72
views
Disk Support HP 400 SAS controller [closed]
I receive a months ago an HP Proliant DL360 G5 with an HP Smart Array P400i Controller with 256 Mb, i have 2 sas 10k 72 Tb disk and i want to upgrade.
I buyed 4 HDD SAS 10K Hitachi 450 Gb, but the ...
- 29
2
votes
2
answers
930
views
How to use SAS expanders with Adaptec 2405 Raid Card
I have a server with Adaptec 2405 RAID card. I have 4 hard drives attached to it. I want to add 4 more. Adaptec site says 2405 can handle up to 128 hard drives with SAS expanders. It's not clear to me ...
- 131
2
votes
2
answers
4k
views
How can I see everyone that is logged on to a Domain Controller?
We have 2 DCs, one main and one backup at another site. we had some issues with our main DC and i believe a lot of people were pushed over to the backup DC. is there a way to see everyone who is using ...
- 137
2
votes
2
answers
2k
views
LSI HBA cards - span a virtual drive across two RAID controllers
I am able to create a virtual drive on one of the RAID controllers, but that virtual drive is isolated to that RAID controller.
I setup four (4) eval RAID cards: LSI MegaRAID SAS 9271-8iCC + ...
- 23
2
votes
1
answer
2k
views
IBM System x3650 M3 - how to expand RAID 10 array
I have RAID 10 array on my IBM System x3650 M3 server - four drives IBM 146GB 10K 6Gbps SAS 2.5". I bought four new drives (also 146GB 10K 6Gbps) because soon I may have problem with free space.
Can ...
user252249
2
votes
4
answers
776
views
sata controller without raid support
I'm looking for a 4 ports pci or pci-express (not pci-x) sata controller with these features:
- real hot swap support
- no RAID support, or with RAID support that can be disabled through the ...
- 457
2
votes
2
answers
393
views
Why is the Kubernetes scheduler a separate process from the controller manager?
This is a question about the design of Kubernetes, I don't have a specific technical problem to solve, but I'm trying to understand the thoughts behind some of its architecture.
All explanations about ...
- 121
2
votes
0
answers
45
views
Re-adding users profile into new DC/AD server
Need some advice. It is related with my question last week.
"Could I create new DC/AD from fresh installation in new machine then I do adding all users information (username and password) based on ...
2
votes
1
answer
680
views
TFS 2010 - does the administration console on the build controller supposed to see all the agents?
We've recently migrated our TFS 2008 to TFS2010 and we wanted to have more than one build agent.
Disclaimer: lame geek naming comming...
So, the new server is the build controller (let's call him ...
1
vote
3
answers
10k
views
HP p410i array controller - what happens if i add memory?
I have a p410i array controller that only has 256ram. We want to create a raid 5 so we have procured a 512 write back cache module.
If we install the write back cache, will this erase the ...
- 11
1
vote
3
answers
190
views
Which user takes precedence domain controller administrator or local PC user created using user account for Windows 2003
I need to know which user takes precedence, domain administrator or local PC user created using user account for Windows 2003.
Basically, what I want to know is if there is a service running using a ...
- 11
1
vote
2
answers
2k
views
NVRAM in a controller RAID
I have one HP server Proliant ML 350 G5 with raid controller E200i.
Diagnostic system shows the message (after system crash and reboot):
Malformed NVRAM detected.
Device: HP Smart Array Controller, ...
- 89
1
vote
1
answer
312
views
dcpromo /forceremoval as a file server
I'm working on a customers infrastructure where most of the DCs were not replicating with each other. I managed to bring up another two DC's, bring them to the domain and switch over the FSMO roles.
...
- 113
1
vote
1
answer
98
views
Best way to introduce a new 2008R2 Domain Controller into a Domain to replace an existing 2003 DC
This should be an easy one for some of you guys with DC and AD experience.
I am introducing a new DC running 2008R2 to replace a DC I have running 2003. I have run through all the set up and I have ...
- 165
1
vote
1
answer
17k
views
kernel: scsi 0:0:0:0: rejecting I/O to dead device
Yesterday, OSSEC sent me an alerting email:
Jul 29 21:25:16 SVR4149 kernel: end_request: I/O error, dev sda, sector 334634969
Jul 29 21:25:16 SVR4149 kernel: sd 0:0:0:0: SCSI error: return code = ...
- 51.5k
1
vote
2
answers
317
views
Moving Raid 5 ISA controller card + 4 Drives to another server while keeping data (not boot)
Due to server failure i would like to move a scsi ISA raid controler + 4 hard drives to another pc to recover the data inside them(raid 5). This raid isn´t a boot raid, there´s another raid holding ...
user58230
1
vote
2
answers
87
views
Connecting SCA-2 Ultra320 disk to some controller using some cable
This is "blast from the past" type question.
I need to make a backup of data stored on SCSI disk used in a large industrial machine.
That machine takes SCSI Ultra320 drives like Cheetah 10K....
- 1,391
1
vote
2
answers
803
views
mdadm array keeps losing disks on separate SATA controller
My Ubuntu Linux server has an mdadm array (RAID 5) with four 2TB SATA disks that keeps "loosing" two disks from time to time. Rebooting and re-assembling the arrays has worked out fine up until now.
...
- 21
1
vote
1
answer
154
views
The lost Root domain
I recently took over the network of a mid size company. The problem I'm running into now is that the company's servers/users/everything is setup in the child domain, and there is no root DC to be ...
1
vote
3
answers
5k
views
Aruba Wireless Controller 200 and AP70 manual
I have an Aruba wireless system that is currently in use but there is no documentation from the previous person in charge. I have no manuals or login information for the wireless controllers and APs.
...
techie
1
vote
1
answer
3k
views
SCSI controller vs RAID controller
I have a Poweredge server which has a Ultra 160 SCSI controller, I was wondering if this has the ability to set the drives as RAID1 or 5?
Is a SCSI & RAID controller generally the same thing?
- 11
1
vote
1
answer
930
views
Adaptec 1405 or HP SmartArray P212 SAS controller supported in the stock RH 5.5 kernel?
I am ordering a custom server and looking at either an Adaptec 1405 SAS controller, or an HP SmartArray P212 to use for the internal SAS Ultrium drive (HP Ultrium LTO-4 1760).
The server will be ...
- 11
1
vote
1
answer
2k
views
Problem adding second domain controller to SBS 2008
Have an SBS 2008 server in one location, and want to add a backup domain controller at a different site. The two sites are linked by a VPN.
New server is running Server 2008 R2, fully patched. At ...
- 229
1
vote
2
answers
9k
views
Computer authenticating with incorrect DC...sort of
I have a login script that uses the LOGONSERVER environment variable. I have several remote offices. There is one file server/DC in each office and each office is their own site. So when a user logs ...
Terry
1
vote
1
answer
601
views
RAID Controller Acting Weird with a New Hard Drive
(Not sure on the model at the moment will update once I know)
So we had a a RAID 5 that had two hard drives fail at the same time.
Positions 0 and and 1 are labeled as "online".
Positions 2 and 3 ...
- 241
1
vote
0
answers
131
views
Changing IP range that holds the Primary Domain Controller
My domain includes a few /24 ranges over an MPLS and we've recently acquired a business which uses the same /24 range as my Primary domain controller (172.17.0.0/24).
Because of this clash, I have 2 ...
- 11
1
vote
0
answers
2k
views
The target account name is incorrect Windows server 2012 R2
I have a new server running Windows server 2012 R2 in a LAN network with a domain controller that was working with all the users and clients for about a week and a half. Then, today, when I was doing ...
- 11
1
vote
0
answers
110
views
Domain misconfiguration when loggging in to Samba 4.5 AD DC
I have set up a Samba 4.5 as a Domain Controller, I have added to AD a Windows 10 computer and a Windows 7 computer and a user and I can login from the windows computer. Relevant info:
My domain is ...
- 11
1
vote
1
answer
491
views
GCE NGINX Ingress does not use controller
I've installed nginx ingress using helm on Google Cloud Kubernetes. The service, controller and default backend are up and running and I can perform a GET request on the /healthz endpoint. However, ...
- 11