User manual ACER ASPIRE M3-581

[. . . ] Record the model number, serial number, purchase date, and place of purchase information in the space provided below. The serial number and model number are recorded on the label affixed to your system. All correspondence concerning your unit should include the serial number, model number, and purchase information. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopy, recording, or otherwise, without the prior written permission of Acer Incorporated. Model Number : _________________________________ Serial Number: ___________________________________ Purchase Date: ___________________________________ Place of Purchase: ________________________________ Acer and the Acer Logo are registered trademarks of Acer Inc. [. . . ] Follow the procedures below to connect the cable (see figure below): 1. Power off the enclosure and the host system. Attach one end of the cable to the connector on the CSM. Attach the other end of this cable to the host. To Host ID 7 1 2 1 2 Mute 0 CSM I I 0 TSM The CSM and TSM can be in either I/O slot of the enclosure. SCSI ID Assignments shown from front of enclosure. Note: For information on the host connectors, refer to the documentation supplied with it. 26 3 Cabling and configuration The Bus A LED will be ON3 to indicate that all disks are on Bus A. The Environmental Services (ES) LED is ON for the TSM in this example to show that its ES block is the active block. Note: Both I/O modules are at ID 15. Only one module will be active at any one time and the other will be on standby. If the active ES block fails the standby will take over. For information on the I/O module LED, see page 20. Cabling the dual (split) SCSI bus configuration Two host cables are required for this configuration. The length of each cable may be a maximum of 25 meters. When viewed from the rear there should be a CSM installed in one I/O slot and a TSM in the other. The SCSI bus needs to be set in the `forced split' mode to do this configuration. Attach the fourth cable to the bottom connector of the second CSM. Attach the other end of this cable to the slave/standby host system (Cluster 2). 29 To Cluster 1 Slave Host To Cluster 2 Master Host To Cluster 2 Slave Host To Cluster 1 Master Host 1 2 1 2 Bus A Bus B Bus B 0 I Mute Bus A I 0 CSM CSM SCSI ID Assignments shown from front of enclosure In this configuration the SCSI bus is split, with each of the connectors attached to a host. If a host is disconnected from the enclosure, the CSM isolates the disconnected host from the internal storage and remaining hosts. This allows a host to be taken offline without data disruption to the other hosts. For left side CSM, the Bus A LED is on for top connector and Bus B LED is on for bottom connector. For right side CSM, the Bus B LED is on for top connector and Bus A LED is on for bottom connector. The ES LED is on for both CSM's. Note: For information on the I/O module LED, see page 20. 30 3 Cabling and configuration Join/Split bus jumper The ESM/CSM has a jumper located on it that forces the SCSI bus into joined or split mode. This jumper is located on the ESM/CSM PCB at location JP10. Remove the top cover from the ESM/CSM and locate jumper JP10. The following table explains the jumper settings: Jumper JP 10 Installed Removed CSMb Installed Removed i/O Module ESMa Bus State 2 cables attached, bus is Force Joined Depends on c able configuration 2 cables attached, bus is Force Split Depends on c able configuration a. The overall cable length in joined bus mode is 10 meters. Any combination of cable lengths is allowed, so long as 10 meters is not exceeded. [. . . ] Detta är nödvändigt för att förhindra personliga skador och skador på hyllan. Varoitus: Poista kaikki teholähteet ja levyasemat ennen hyllyn asentamista kehykseen tai poistamista kehyksestä. Levyhyllyä asennettaessa on suositeltavaa käyttää ainakin yhtä avustajaa. Tämä on välttämätöntä loukkaantumisten ja hyllyn vaurioitumisen välttämiseksi. [. . . ]