Pastikan paket rpcbind atau portmapper diinstal di host Linux. Jalankan:
# rpm -qa | grep rpcbind
Tindakan ini akan menampilkan sesuatu seperti: rpcbind-0.1.6+git20080930-6.15
Jika tidak melihat apa pun, Anda harus menginstal paket menggunakan YaST atau
zypper:
Menggunakan YaST: # yast2 --install rpcbind
Menggunakan Zypper: # zypper install rpcbind
Mempelajari informasi klien NFS dari host Linux
Paket dan versi klien NFS yang disetujui Pencadangan dan DR harus diinstal di
host.
Periksa apakah layanan portmapper atau rpcbind sedang berjalan. Jalankan:
# sudo service rpcbind status
Host Red Hat RHEL 6 atau CentOS Linux akan menampilkan sesuatu seperti:
rpcbind (pid 1591) is running...
Host Linux SLES akan menampilkan sesuatu seperti:
Checking for service rpcbind running
Jika layanan rpcbind tidak berjalan di host Linux, mulai dengan:
# sudo service rpcbind start
Gunakan rpcinfo untuk mencantumkan program atau layanan RPC yang terdaftar. Portmapper
harus terdaftar dan berjalan.
# sudo rpcinfo -p
program vers proto port service
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
Periksa apakah host Linux dapat melakukan panggilan RPC ke program rpcbind dan NFS di
perangkat pencadangan/pemulihan menggunakan perintah berikut.
# sudo rpcinfo -T tcp <#vm internal IP> rpcbind
program 100000 version 2 ready and waiting
program 100000 version 3 ready and waiting
program 100000 version 4 ready and waiting
# sudo rpcinfo -T tcp <#vm internal IP> nfs
program 100003 version 2 ready and waiting
program 100003 version 3 ready and waiting
Jika perintah sebelumnya menampilkan output yang ditampilkan sebelumnya, konektivitas NFS dari
host Linux ke appliance pencadangan/pemulihan sudah baik.
Merencanakan ukuran disk staging
Untuk beberapa sistem file besar, Anda mungkin harus menetapkan ukuran disk staging secara manual
untuk sistem file. Ukuran disk staging default adalah NAS capacity + 20%,
tetapi ada dua kasus yang mungkin tidak memadai:
Sistem file jaringan NFS dan SMB terkadang salah melaporkan kapasitas yang sangat besar. Jika sistem file melaporkan bahwa ukurannya lebih dari 128 TiB,
agen Pencadangan dan DR akan gagal melakukan pencadangan dengan kode error 5289:
"Ukuran volume yang dilindungi yang dilaporkan mengharuskan ukuran disk staging
ditentukan untuk aplikasi ini". Error ini mencegah Backup and DR Service
mengalokasikan disk besar yang tidak diperlukan atau lebih besar dari
yang dapat ditangani oleh perangkat pencadangan/pemulihan.
Meskipun NAS Anda menggunakan penghapusan duplikat dan kompresi pada disknya,
Layanan Pencadangan dan DR tidak menghapus duplikat atau mengompresi data dalam image cadangan di
disk staging. NAS Anda mungkin melaporkan penggunaan sebesar 5 TB, tetapi image cadangan di
disk staging mungkin menggunakan lebih banyak ruang secara signifikan. Hal ini juga mengharuskan
administrator menentukan ukuran disk staging manual. Hal ini dapat menyebabkan error "staging disk full".
Jika Anda melihat salah satu error ini, tetapkan ukuran disk staging secara manual di
Detail dan Setelan Aplikasi.
Snapshot virtual dalam direktori .snapshot
Terkadang di NAS terdapat direktori .snapshot yang berisi salinan lengkap
konten NAS. Ini adalah snapshot virtual NAS. Agen Pencadangan dan DR
mencoba menyalin semua snapshot tersebut dan kehabisan ruang. Anda dapat mengatasinya
dengan menggunakan pola pengecualian .snapshot atau ~snapshot (nama apa pun yang digunakan
NAS). Lihat Kecualikan pola di.
Informasi tambahan untuk menyiapkan host sistem file
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Sulit dipahami","hardToUnderstand","thumb-down"],["Informasi atau kode contoh salah","incorrectInformationOrSampleCode","thumb-down"],["Informasi/contoh yang saya butuhkan tidak ada","missingTheInformationSamplesINeed","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-09-03 UTC."],[[["\u003cp\u003eThis guide provides instructions on ensuring NFS connectivity for Backup and DR services on both Red Hat/CentOS and SLES Linux hosts.\u003c/p\u003e\n"],["\u003cp\u003eTo verify if the NFS client is installed, run \u003ccode\u003erpm -qa | grep nfs\u003c/code\u003e, and if not found, use \u003ccode\u003eyum\u003c/code\u003e or \u003ccode\u003eYaST/zypper\u003c/code\u003e to install \u003ccode\u003enfs-utils\u003c/code\u003e and \u003ccode\u003enfs-client\u003c/code\u003e respectively.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003erpcbind\u003c/code\u003e service, or portmapper, is essential for NFS operations and needs to be installed (using \u003ccode\u003eyum\u003c/code\u003e or \u003ccode\u003eYaST/zypper\u003c/code\u003e if it is not present) and running, verified with \u003ccode\u003e# sudo service rpcbind status\u003c/code\u003e and started with \u003ccode\u003e# sudo service rpcbind start\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eYou can confirm NFS connectivity by using \u003ccode\u003erpcinfo\u003c/code\u003e commands to check for registered RPC programs and to verify that the Linux host can make RPC calls to \u003ccode\u003erpcbind\u003c/code\u003e and NFS on the backup/recovery appliance.\u003c/p\u003e\n"],["\u003cp\u003eStaging disk size may need manual adjustment due to large file system capacity reporting errors or because the Backup and DR service does not deduplicate data on staging disks, and it is possible to use exclude patterns to avoid backing up \u003ccode\u003e.snapshot\u003c/code\u003e directories.\u003c/p\u003e\n"]]],[],null,["# Prepare Filestore and other file systems for Backup and DR Service\n\nThis page includes information on how to ensure there is NFS connectivity for\nBackup and DR.\n\nInstall the NFS client on a Red Hat RHEL 6 or CentOS Linux host\n---------------------------------------------------------------\n\nSee if the client is installed by running: `# rpm -qa | grep nfs`\n\nThis should return something like: \n\n nfs-utils-lib-1.1.5-9.el6.x86_64\n nfs-utils-1.2.3-54.el6.x86_64\n\n- If you see nothing, then use yum to install the NFS client packages. Run: `# yum install nfs-utils nfs-utils-lib`\n- Make sure rpcbind /portmapper package is installed on the Linux host. Run:`# rpm -qa | grep rpcbind`\n\nThis should return something like: `rpcbind-0.2.0-11.el6.x86_64`\n\n- If you see nothing, then use yum to install the rpcbind. Run: `# yum install rpcbind`\n\nInstall the NFS client on a SLES Linux host\n-------------------------------------------\n\n1. To see if the client is installed, run: `# rpm -qa | grep nfs`\n\n This should return something similar to: \n\n nfs-client-1.2.1-2.6.6\n yast2-nfs-common-2.17.7-1.1.2\n yast2-nfs-client-2.17.12-0.1.81\n\n2. If you don't see either nfs-client or yast2-nfs-xxxx packages, then use\n either YaST or zypper to install the NFS client packages.\n\n - Using YaST:\n\n # yast2 --install yast2-nfs-client\n # yast2 --install yast2-nfs-common\n\n - Using Zypper:`# zypper install nfs-client`\n3. Ensure that rpcbind or portmapper package is installed on the Linux host. Run:\n `# rpm -qa | grep rpcbind`\n This should return something like: rpcbind-0.1.6+git20080930-6.15\n\n4. If you see nothing, then you must install the packages using either YaST or\n zypper:\n\n - Using YaST: `# yast2 --install rpcbind`\n - Using Zypper: `# zypper install rpcbind`\n\nLearn NFS client information from the Linux host\n------------------------------------------------\n\nA Backup and DR-approved NFS client package and version must be installed on\nthe host.\n\n1. Check if the portmapper or rpcbind service is running. Run:\n `# sudo service rpcbind status`\n\n - A Red Hat RHEL 6 or CentOS Linux host should return something like: `rpcbind (pid 1591) is running...`\n - An SLES Linux host should return something like: `Checking for service rpcbind running`\n2. If rpcbind service is not running on Linux host, start it with:\n `# sudo service rpcbind start`\n\n3. Use rpcinfo to list the registered RPC programs or services. Portmapper\n must be registered and running.\n\n # sudo rpcinfo -p\n program vers proto port service\n 100000 4 tcp 111 portmapper\n 100000 3 tcp 111 portmapper\n 100000 2 tcp 111 portmapper\n 100000 4 udp 111 portmapper\n 100000 3 udp 111 portmapper\n 100000 2 udp 111 portmapper\n\n4. Check if the Linux host can make an RPC call to rpcbind and NFS programs on\n the backup/recovery appliance using the following.\n\n # sudo rpcinfo -T tcp \u003c#vm internal IP\u003e rpcbind\n program 100000 version 2 ready and waiting\n program 100000 version 3 ready and waiting\n program 100000 version 4 ready and waiting\n # sudo rpcinfo -T tcp \u003c#vm internal IP\u003e nfs\n program 100003 version 2 ready and waiting\n program 100003 version 3 ready and waiting\n\nIf the preceding commands return the output shown earlier, then NFS connectivity from\nLinux host to the backup/recovery appliance is good.\n\nPlanning staging disk size\n--------------------------\n\nFor some large filesystems, you may have to manually set the staging disk size\nfor the file system. The default staging disk size is `NAS capacity + 20%`,\nbut there are two cases in which this may be insufficient:\n\n- NFS and SMB network file systems sometimes incorrectly report very large\n capacities. In cases where the file system reports that it is over 128TiB the\n Backup and DR agent fails the backup with error code 5289:\n \"The reported size of the protected volume requires that the staging disk size\n is specified for this application\". This error prevents Backup and DR Service\n from allocating a huge disk that is not needed or that is larger than the\n backup/recovery appliance can handle.\n\n- Even if your NAS is using dedup and compression on its disks,\n Backup and DR Service does not deduplicate or compress data in the backup image on\n the staging disk. Your NAS may report usage of 5TB, but the backup image on\n the staging disk may use significantly more space. This also requires that the\n administrators specify a manual staging disk size. This may result in a\n \"staging disk full\" error.\n\nIf you see either of these errors, then manually set the staging disk size in\n[Application Details and Settings](/backup-disaster-recovery/docs/backup/app-details-settings-filesystems).\n\nVirtual snapshots in a .snapshot directory\n------------------------------------------\n\nSometimes on the NAS there are .snapshot directories containing a full copy of\nthe NAS contents. These are virtual snapshots of the NAS. The Backup and DR agent\ntries to copy all of those snapshots and runs out of space. You can remedy this\nby using an exclude pattern of `.snapshot` or `~snapshot` (whatever name the NAS\nuses). See [Exclude patterns in](/backup-disaster-recovery/docs/backup/app-details-settings-filesystems).\n\nAdditional information for preparing file system hosts\n------------------------------------------------------\n\nAdditional information relevant to preparing a file system host for protection\nare in [Manage hosts and their connected applications](/backup-disaster-recovery/docs/configuration/manage-hosts-and-their-applications)."]]
