更新 'defaults'

defaults

@@ -4,7 +4,7 @@
         "sample_id":"",
         "docker_stralka":"registry.cn-shanghai.aliyuncs.com/hcc1395_aliyun/strelka:v2.9.10",
         "cluster_config":"OnDemand ecs.sn1ne.4xlarge img-ubuntu-vpc",
-        "disk_size":"500",
+        "disk_size":"50",
 		"manta_indel_vcf":"",
         "manta_indel_vcf_index":""
 }