In joined-bus and cluster modes, if a secondary EMM receives a message that the primary EMM has failed, the fault LED indicator on the primary EMM is illuminated and the condition is reported back to the host initiator. The secondary EMM then becomes active and holds the failed primary in a state of reset until it is replaced. If the primary EMM detects that the secondary has failed, the secondary’s fault LED indicator is illuminated and the failed status is reported back to the host initiator.

NOTE: In split-bus mode, each EMM controls half of the enclosure. If one EMM fails in split-bus mode, the second EMM reports the failure but does not assume control of the entire SCSI bus.

The primary EMM is always plugged into the slot on the left (viewed from the back of the system). In a redundant joined-bus configuration, the primary EMM assumes control of all the enclosure functionality. In addition, the primary EMM is the only module that reports the status of the system to the host initiator through SES and SAF-TE protocols. Because the secondary EMM must assume the responsibilities of the primary in the event that the primary fails, both the primary and secondary EMMs are continuously monitoring the status of the

system’s components.

Preparing the PERC RAID Adapter for Clustering

The warning message shown in Figure 3-3 appears on your screen when you attempt to modify the configuration of the shared storage system on your cluster by using the PERC RAID adapter BIOS configuration utility.

Figure 3-3. Important System Warning

!!!STOP!!!

This operation may change the configuration of disks and can cause loss of data! Ensure:

1.Peer server is powered up for its controller NVRAM to be updated. Otherwise, disk configuration should be read from disk and saved to controller's NVRAM.

2.The second server must not be configuring the disks.

3.There is no I/O activity against shared drives.

Press Any Key To Continue

The warning message appears on the screen immediately after activating the PERC RAID adapter BIOS configuration utility by pressing <Ctrl><m> during the system’s Power-On Self-Test (POST).

Preparing Your Systems for Clustering

43

Page 42 Page 44
Page 43
Image 43
Dell SE500W manual Preparing the Perc RAID Adapter for Clustering, Important System Warning
Page 42 Page 44

SE500W specifications

The Dell SE500W is a remarkable addition to the realm of productivity-focused monitors. Designed to meet the demands of both office environments and versatile home setups, this monitor offers a blend of cutting-edge technology and user-friendly features.

One of the standout characteristics of the SE500W is its stunning display quality. The monitor boasts a Full HD resolution of 1920 x 1080 pixels, delivering crisp and vibrant visuals. This makes it ideal for various tasks, whether you are editing photos, watching videos, or working on extensive spreadsheets. The IPS panel provides wide viewing angles, ensuring consistent color accuracy and clarity from virtually any position.

Another key feature of the Dell SE500W is its ergonomic design. The monitor is equipped with a flexible stand that allows for height adjustment, tilt, and swivel capabilities. This adaptability ensures that users can customize their viewing experience to minimize neck and eye strain during long hours of use. Furthermore, the monitor includes VESA mount compatibility, providing additional options for mounting it on walls or adjustable arms.

In terms of connectivity, the Dell SE500W doesn't disappoint. It comes with multiple ports, including HDMI and DisplayPort inputs, enabling easy connections to a variety of devices such as laptops, desktops, and gaming consoles. The addition of USB ports allows users to charge devices or connect peripherals without fuss.

The SE500W also incorporates features aimed at enhancing user comfort and productivity. The Dell ComfortView technology reduces harmful blue light emissions, making it easier on the eyes during extended use. Moreover, its Flicker-Free technology helps eliminate flickering, adding another layer of comfort for users who spend significant time in front of the screen.

Energy efficiency is another important aspect of the Dell SE500W. It is designed to meet ENERGY STAR certification standards, consuming less power and being environmentally friendly. This not only helps in reducing energy bills but also lessens the carbon footprint.

Overall, the Dell SE500W is a solid choice for anyone seeking a reliable and versatile monitor. With its impressive display, ergonomic features, extensive connectivity options, and focus on user comfort, it stands out as a well-rounded monitor for both professional and casual use. Whether for productivity tasks or entertainment, the SE500W is poised to enhance the user experience significantly.
Top Page Image Contents