请修改cinder后端配置文件将卷复制带宽限制为最高100 MiB/s

好的，我明白您的要求。为了修改cinder后端配置文件将卷复制带宽限制为最高100 MiB/s，您可以按照以下步骤进行操作：

1. 进入cinder的配置文件目录，通常情况下该目录位于/etc/cinder/或/opt/stack/data/cinder/etc/cinder/下，具体位置取决于您的环境。

2. 接下来，找到名为cinder.conf的配置文件，并打开它以编辑。

3. 在配置文件中找到[DEFAULT]部分，然后添加或编辑以下行来修改卷复制带宽限制：

backup_file_size = 134217728
backup_swift_object_size = 134217728
backup_swift_block_size = 134217728
backup_swift_enable_progress_timer = False
backup_compression_algorithm = zlib
backup_use_existing_volume = False
backup_use_same_host = False
backup_same_host_ssl_cert_verify = True
backup_swift_ssl_cert_path = /opt/stack/data/cinder/cinder.conf
backup_swift_ssl_key_path = /opt/stack/data/cinder/cinder.key
backup_swift_store_capabilities = []
backup_swift_auth_insecure = False
backup_network_chunk_size = 32768
backup_swift_retry_attempts = 3
backup_swift_retry_backoff = 2
backup_swift_object_expiry_duration_hours = 24
backup_verify_glance_signatures = False
backup_compression_level = 1
backup_gcs_chunk_size = 16777216
backup_gcs_object_size = 536870912
backup_ceph_chunk_size = 134217728
backup_ceph_user = cinder-backup
backup_ceph_cluster_name = ceph
backup_ceph_caps = mgr,allow rw
backup_ceph_stripe_unit = 0
backup_ceph_stripe_count = 0
backup_ceph_object_size = 1073741824
backup_ceph_pool = backups
backup_ceph_keyring_conf = /etc/ceph/ceph.client.cinder.keyring
backup_ceph_backup_driver = cinder.backup.drivers.ceph
backup_ceph_backup_ceph_conf = /etc/ceph/ceph.conf
backup_ceph_verify_glance_signatures = False
backup_ceph_backup_image_bandwidth_limit = 104857600
backup_ceph_backup_image_compression_algorithm = zlib
backup_ceph_backup_use_fuse = False
backup_ceph_backup_ceph_backup_chunk_size = 134217728
backup_ceph_backup_ceph_backup_rados_pool = backups
backup_ceph_backup_ceph_backup_ceph_conf = /etc/ceph/ceph.conf
backup_ceph_backup_ceph_backup_keyring_conf = /etc/ceph/ceph.client.cinder.keyring
backup_ceph_backup_ceph_backup_stripe_unit = 0
backup_ceph_backup_ceph_backup_stripe_count = 0
backup_ceph_backup_ceph_backup_object_size = 1073741824
backup_ceph_backup_ceph_backup_bucket_name_suffix = _ceph_backup_bucket

上述配置项中的"backup_ceph_backup_image_bandwidth_limit"是用于设置卷复制带宽限制的参数值，设置最高100 MiB/s的限制，该值应该设置为104857600 bytes。

4. 保存文件并关闭编辑器。

5. 最后，重新启动cinder服务以使更改生效。

以上就是修改cinder后端配置文件将卷复制带宽限制为最高100 MiB/s的方法，希望能对您有所帮助。