diff --git a/lib/bdev/nvme/blockdev_nvme.c b/lib/bdev/nvme/blockdev_nvme.c index db57704d4f..b348fbd498 100644 --- a/lib/bdev/nvme/blockdev_nvme.c +++ b/lib/bdev/nvme/blockdev_nvme.c @@ -594,7 +594,12 @@ nvme_ctrlr_initialize_blockdevs(struct spdk_nvme_ctrlr *ctrlr, int bdev_per_ns, bdev->disk.max_unmap_bdesc_count = NVME_DEFAULT_MAX_UNMAP_BDESC_COUNT; } - bdev->disk.write_cache = 1; + + bdev->disk.write_cache = 0; + if (cdata->vwc.present) { + /* Enable if the Volatile Write Cache exists */ + bdev->disk.write_cache = 1; + } bdev->blocklen = spdk_nvme_ns_get_sector_size(ns); bdev->disk.blocklen = bdev->blocklen; bdev->disk.blockcnt = bdev->lba_end - bdev->lba_start + 1;