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IBM/AIX

TCP및UDP성능조정 조정 가능한 통신 매개변수에 가장 적합한 설정은 주요 시스템 및 응용프로그램의 통신 입출력 특성 뿐만 아니라 LAN 유형에 따라서도 달라집니다. 이 절은 AIX의 통신 조정 전역 원리를 설명합니다.네트워크 설치 및 작업 부하 검증 및 조정을 위해 다음 개요를 사용하십시오.어댑터가 적절한 슬롯에 있는지 확인하십시오.시스템 펌웨어가 적절한 릴리스 레벨에 있는지 확인하십시오.어댑터 및 네트워크 스위치가 적절한 속도 및 양방향 (전송) 모드인지 확인하십시오.올바른 MTU 크기가 선택되었는지 확인하십시오.네트워크 유형, 속도 및 프로토콜의 AIX 조정 기능을 조정하십시오.기타 고려사항:어댑터 오프로드 옵션TCP 체크섬 오프로드TCP 대형 전송 또는 재단편화인터럽트 연합입력 스레드(Dog 스레드)어댑터 배치네트워크.. 더보기
Repairing Corrupt File Systems or File System Log Devices Repairing Corrupt File Systems or File System Log DevicesTechnote (FAQ) QuestionRepairing Corrupt File Systems or File System Log DevicesAnswer This document covers the use of the fsck and logform commands to repair inconsistencies or corruption in file systems and associated log devices. This document applies to AIX Versions 4 and 5.Fixes for the fsck and logform commandsAbout the fsck and logf.. 더보기
Inodes used 100% while filesystem is not full Problem(Abstract) This document addresses what steps to take when a filesystem has 100% inodes used, but the filesystem itself is not 100% used. This document applies to AIX version 5. Symptom Unable to create any new files in filesystem. Cause 100% inodes used in the filesystem. Environment Diagnosing the problem Resolving the problem JFS 1) When inode % reach 100%, even if the filesystem has f.. 더보기
vmm memory tuning Overview of AIX page replacement David Hepkin (dhepkin@us.ibm.com), AIX Kernel Architect, IBM Summary: Go through detailed information on how the AIX® virtual memory manager (AIX VMM) works and how to use tunable parameters to adjust the operation of the AIX VMM. The AIX VMM is responsible for managing all of the memory on a system. The operation of the AIX VMM is critical to the performance of .. 더보기
tar 대신 다른 명령으로 backup하기 How can I archive a directory with backup? inShare TARON AIX HAS SEVERE LIMITATIONS. IF I WANT TO ARCHIVE AN DIRECTORY WITHOUT THESE LIMITATIONS I THINK ABOUT THEBACKUPCOMMAND. BUT WHAT WOULD BE THE SYNTAX? Assuming you want to backup /usr/local the tar command would be something like this: # tar cvpf /tmp/archive.tar ./usr/local/ You could use the following backup command instead: # find ./usr/.. 더보기
rootvg사이즈를dynamic하게변경하기 UPDATED: Grow your rootvg on the fly (from 6.1 TL 4) AnthonyEnglish| Oct 11 2010 | Tags: volume_group resize rootvg 6.1 7.1 extendlv spare aix 5.3 chvg growth backend disk san lun| Comments (11) | Visits (5,543) inShare 2 There are lots of good reasons for having spare disk for rootvg, as I looked at in the post make way for rootvg. With virtual disks you can resize your volume group on the fly:.. 더보기
Dynamic Tracking of Fibre Channel devices AIX 6.1 정보 > 성능 관리 및 성능 조정 > Performance management > Logical volume and disk I/O performance Dynamic Tracking of Fibre Channel devices AIX® supports dynamic tracking of Fibre Channel (FC) devices. Previous releases of AIX required a user to unconfigure FC storage device and adapter device instances before making changes on the system area network (SAN) that might result in an N_Port ID (SCSI ID.. 더보기
How to NFS Mount a cdrom Filesystem Technote (FAQ) Question How to NFS Mount a cdrom Filesystem Answer Following are the steps required to mount a CD-ROM as a cdrom filesystem, export the NFS filesystem from the server and NFS mount the filesystem on the client. This document applies to AIX Versions 4.3 and above. On the server On the client Troubleshooting On the server Check the status of portmap and the NFS daemons: Enter lssrc.. 더보기
mkisofs(이미지생성) ISO image 만들기 #mkisofs -r -o cdimage [디렉토리] 예) /test/jaeho1 Directory의 내용을 jaeho_1.iso라는 ISO Image File로 생성. #mkisofs -r -o jaeho_1.iso /test/jaeho1 더보기
timezone Managing the Time Zone Variable Technote (FAQ) Question Managing the Time Zone Variable Answer This document discusses the Time Zone (TZ) variable and how to change to and from Daylight Savings Time (DST). This document applies to all versions of AIX. PLEASE NOTE: The default timezone format for AIX 6.1 and AIX 7 is Olson Time, this technote does not apply to Olson Time, but standard POSIX timez.. 더보기

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