viniciusferrao
Contributor
- Joined
- Mar 30, 2013
- Messages
- 192
Hello guys,
I've run zdb -S on one of my zpools to see if dedup would help. At it really would help with 1.55x ratio.
But, there's the "copies" value. And I don't know WTH is this value. And and the end, enabling deduplication would be worse.
Here's the output:
Please someone help-me understanding this? This makes no sense for me.
Thanks in advance,
I've run zdb -S on one of my zpools to see if dedup would help. At it really would help with 1.55x ratio.
But, there's the "copies" value. And I don't know WTH is this value. And and the end, enabling deduplication would be worse.
Here's the output:
Code:
storage# cat nohup.out traversing objset 0, 104 objects, 0 blocks so far traversing objset 21, 9 objects, 0 blocks so far traversing objset 41, 2 objects, 1 blocks so far Simulated DDT histogram: bucket allocated referenced ______ ______________________________ ______________________________ refcnt blocks LSIZE PSIZE DSIZE blocks LSIZE PSIZE DSIZE ------ ------ ----- ----- ----- ------ ----- ----- ----- 1 72.6M 581G 581G 1.30T 72.6M 581G 581G 1.30T 2 4.32M 34.6G 34.6G 79.0G 9.84M 78.7G 78.7G 180G 4 2.15M 17.2G 17.2G 39.4G 11.0M 88.2G 88.2G 202G 8 731K 5.71G 5.71G 13.1G 7.26M 58.1G 58.1G 133G 16 178K 1.39G 1.39G 3.17G 3.61M 28.9G 28.9G 65.9G 32 53.7K 429M 429M 981M 2.26M 18.1G 18.1G 41.4G 64 22.0K 176M 176M 403M 1.86M 14.9G 14.9G 34.1G 128 3.05K 24.4M 24.4M 55.8M 452K 3.53G 3.53G 8.07G 256 329 2.57M 2.57M 5.87M 109K 870M 870M 1.94G 512 329 2.57M 2.57M 5.87M 197K 1.54G 1.54G 3.52G 1K 50 400K 400K 914K 66.3K 530M 530M 1.18G 2K 46 368K 368K 841K 137K 1.07G 1.07G 2.45G 4K 19 152K 152K 347K 98.6K 789M 789M 1.76G 8K 8 64K 64K 146K 95.2K 762M 762M 1.70G 16K 4 32K 32K 73.1K 86.4K 691M 691M 1.54G 32K 2 16K 16K 36.6K 90.5K 724M 724M 1.62G 128K 2 136K 136K 146K 298K 17.3G 17.3G 19.0G 256K 3 24K 24K 54.8K 930K 7.26G 7.26G 16.6G 512K 1 8K 8K 18.3K 946K 7.39G 7.39G 16.9G 4M 2 16K 16K 36.6K 11.3M 90.5G 90.5G 207G Total 80.0M 640G 640G 1.43T 123M 1000G 1000G 2.21T dedup = 1.55, compress = 1.00, copies = 2.26, dedup * compress / copies = 0.68
Please someone help-me understanding this? This makes no sense for me.
Thanks in advance,