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Hello,<br />
<br />
Last night I started to get a disk error on our exchange server, dell poweredge 2950, 4 physical disks raid 5....<br />
<br />
The event id 7 - saying The Device , \device\harddisk1\dr4, has a bad block.....<br />
<br />
When looking at the event ID resolution it says if the event is logged regularly to replace the hard disk...the event has logged 126 times in 24 hours so I think it is time to replace it....<br />
<br />
The question I have since we are in a raid 5 setup is how do I go about replacing.....ex do I just take the old one out.....put new one in and rebuild raid via dells server administrator? I have added extra disks before and have done this but I have never replaced a bad one....is their other things I should consider while doing this.....I do have a complete backup and can run another before changing the disk.....and do I have to do it when no one is utilizing the server?<br />
<br />
thanks in advance<br />
<br />

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Hello,

Last night I started to get a disk error on our exchange server, dell poweredge 2950, 4 physical disks raid 5....

The event id 7 - saying The Device , \device\harddisk1\dr4, has a bad block.....

When looking at the event ID resolution it says if the event is logged regularly to replace the hard disk...the event has logged 126 times in 24 hours so I think it is time to replace it....

The question I have since we are in a raid 5 setup is how do I go about replacing.....ex do I just take the old one out.....put new one in and rebuild raid via dells server administrator? I have added extra disks before and have done this but I have never replaced a bad one....is their other things I should consider while doing this.....I do have a complete backup and can run another before changing the disk.....and do I have to do it when no one is utilizing the server?

thanks in advance



Hard Disk Has A Bad Block - if event is logged regularly replace the hard disk

Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.

Storage Hardware

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.