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Still not quite sure as to what issues may be ,but had some corruption here and there on the system.<br />
Things like expired SSL certs still popping up in error logs and mailbox corruption on the Exchange box.<br />
M$ helped me clean some of it up ,but it seems to come and go.<br />
Since the last Exchange rollup ,things seem to be more stable.
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Still not quite sure as to what issues may be ,but had some corruption here and there on the system.
Things like expired SSL certs still popping up in error logs and mailbox corruption on the Exchange box.
M$ helped me clean some of it up ,but it seems to come and go.
Since the last Exchange rollup ,things seem to be more stable.

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I recently replaced a bad disk on a PERC 5 in a PE 840.<br />
<br />
The system has been running very slow over the past couple of months and after I ran a chkdsk ,it took over an hour to run on a raid 5 4 X 250 GB disk array.<br />
<br />
The company I bought the disks from sent me Dell branded Seagate SATA to replace the Dell WD RE 2's that went bad.<br />
So it looks like I've got 2 WD and 2 Seagate drives(both Dell branded).<br />
The performance seems to be sucking.<br />
My gut feeling is there is a firmware issue with these drives and the controller.<br />
<br />
The leds are on all the time on the disks even when it's not busy.<br />
<br />
My question is would mixing different Dell OEM drives cause this issue?
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I recently replaced a bad disk on a PERC 5 in a PE 840.

The system has been running very slow over the past couple of months and after I ran a chkdsk ,it took over an hour to run on a raid 5 4 X 250 GB disk array.

The company I bought the disks from sent me Dell branded Seagate SATA to replace the Dell WD RE 2's that went bad.
So it looks like I've got 2 WD and 2 Seagate drives(both Dell branded).
The performance seems to be sucking.
My gut feeling is there is a firmware issue with these drives and the controller.

The leds are on all the time on the disks even when it's not busy.

My question is would mixing different Dell OEM drives cause this issue?

Dell RAID issues

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

Server Hardware

Since 1984, Dell has been delivering technology to fit your life.
Dell is in Enterprise, Home Office and Consumer sectors of the market, supplying a broad range of customizable desktops, laptops, notebooks, servers, storage, and network devices.

Dell

RAID stands for Redundant Array of Independent Disks.

RAID is data storage technology that allows multiple drives to be used together as a single virtual drive for reasons such as fault tolerance, reliability and performance. 

There are several different levels of RAID that determine how the data is stored and the level of redundancy achieved across the drives.

RAID

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.